Dai Hoa

Dai Hoa, officially the Democratic Republic of the Union of Dai Hoa (: コㄟ ㄢ`ア ㄕン チㄠˇ リエン バㄥ ダㄟ ㄢ`ア; : မဟာသဟဇာတပြည်ထောင်စုဒီမိုကရက်တစ်သမ္မတနိုင်ငံ), is a   state in southern Escar. It is bordered to the west and north by Liang, to the north-east by Arshavat, and shares a maritime border with Masuka to the south-west. Dai Hoa's eastern coast is on the Gulf of Gaur, and its southern coast borders the Crosswind Sea. The country had a population of 51,486,253 as of 2016. The capital city is Bắc Quan, and the largest city is Hai Fuong.

The Nanyo region was first inhabited by modern humans at least 46,000 years ago. Early settlement was concentrated around the Thơm river and Ratanarmyay peninsula, but eventually spread to the Hong river delta and the Laymyo river regions. The first known large kingdom in the region was the Vyadhapura Mandala in the 1st century, which expanded along the coast and up the Kuulong river. The Vyadhapura Mandala was pushed out of the Thom river plains by the arrival of the who settled there. Vyadhapura later collapsed and was replaced by the smaller, -ruled Bhavapura Mandala. Hua began to dominate the Song city-states, while in the 9th century the Shwesain Kingdom emerged and halted Hua expansion into the Kuulong. In the closing of the 9th century, the Prasat Empire was formed after a rebellion in the Bhavapura Mandala, and the later Trưng Uprising by the Song led to the creation of the Empire of Đôngsông.

Expansion of the Prasat Empire brought it into conflict with the Shwe Kingdom, leading to the Shwe's decline and collapse, and the Prasat Empire became the largest polity in the Crosswind Sea region by the 12th century. In the 14th century, a rebellion led to instability in the Prasat Empire, and the Empire of Dongsong invaded it in the Century War, conquering the entirety of southern Nanyo by the mid 15th century. In the north, the post-Shwe Tampan kingdoms were united under the Ratana Empire. Wars with the Hua eventually caused the Empire of Dongsong to be pushed to the east of the Ziem river, where the border between Dai Hoa and Liang remains to the modern day. Trade between Dongsong and Western Escar began in the late 16th century, and in the 17th century Dongsong experienced a civil war, reforming after the war into the Song Empire.

Colonialism, largely by Yamatai, greatly changed the Nanyo region. After the Nhâm Thìn War in 1773, the Unequal Treaties of Hung Yen were imposed on the Song Empire and they became a vassal state of Yamatai. Later, the 1804 Yellow Palace Incident resulted in Yamatai taking direct control of the Song Empire, administering it as Yamataian Ekuni as part of the Yamataian empire. The Yamatai-Ratana War in 1839 also saw the Ratana Empire's downfall and incorporation into the Yamataian Empire, with the Nanyo region consolidated as the colonial state of Yamataian Nanyokuni in 1855. Yamataian Nanyokuni would later become a front line in the Second Escar-Varunan War, during which Arshavat invaded the colony and took about two-thirds of the territory before the Treaty of Lâm Đồng was signed and the war ended with Nanyokuni partitioned between Arshavati and Yamataian controlled areas.

The Arshavat-controlled region quickly announced independence as Dai Hoa on 1 February 1945 under Trịnh Hạc Đính and the Socialist Party of Dai Hoa, and the Yamataian region was later granted independence in 1947 as the Song Republic. In 1957, the Dai Hoa Unification War broke out when Dai Hoa invaded the Song Republic, eventually pushing the Song regime off the mainland to Dep Dao. During the war, Dai Hoa became the only country in the world to suffer the use of nuclear weapons, when Arshavat deployed three nuclear weapons on Yamethin, Đác Lác, and Thành Đông.

After the war, the Hoa-Arshavati Split developed due to ideological differences, and Dai Hoa began attempting to build its own socialist bloc in the region. To this end, Dai Hoa participated in the Masukan Civil War in 1982 and the Hoaian-Sahilese War from 1988 to 1992 to support its allied socialist movements, but faced economic struggles after the loss in the Hoaian-Sahilese War. In the 1990s, major economic and political reforms were carried out, transforming the country to a market-oriented economy and pivoting to Western Escar. In 1997, Dai Hoa invaded Dep Dao in the Second Hoaian War and defeated the Song Republic. In 2018, Dai Hoa suffered from the Hoaian Bid Flu Pandemic, which was only contained in mid-2019.

Dai Hoa is a developing country with a lower-middle income economy. The Hoaian economy is primarily based on agriculture, resource extraction, and manufacturing, and Dai Hoa is a country rich in mineral resources, teak, natural gas, jade and gems, and lanthanides. Since market liberalisation in the 1990s, Dai Hoa has one of the fastest growing economies of the 21st century, with rapidly growing service and tourism sectors. Dai Hoa is a member of the Ordic League and the Wanshu Development Summit. It is a partner but not full member of the Heian Cooperation Organisation, and has contributed to the organisation's Crosswind Region Security Assistance Force. Contemporary issues in Dai Hoa include corruption, racial inequality, and a poor human rights record.

Etymology
The term Dai Hoa, which means "Great Harmony" in, was coined in the mid-19th century by Bành Công Lý, a political dissident who was one of the first Hoaian nationalists. Banh proposed the idea that the entire Nanyo region should be united as one nation, Dai Hoa, regardless of race, as that would be the only way they could resist foreign imperialism and gain independence from Yamatai. This pan-Nanyo nationalist concept was embraced by the Socialist Party of Dai Hoa.

The names of the country in Dai Hoa's two official languages, and, are Đại Hòa (ダㄟ ㄢ`ア) and Mahar Sahajart (မဟာသဟဇာတ) respectively. "Dai Hoa" is more commonly used globally.

Prehistory
The oldest known modern human remains in the Nanyo region, a skull found in the Hương Sơn mountains in 2009, date to at least 46,000 years ago. Cave paintings discovered in the Nyaunggyat Caves point to neolithic age domestication of plants and animals in the north after 6,500 BCE. Evidence of construction of permanent structures and storage of agricultural surplus appeared in the northern regions of Nanyo.

Prior to the 2nd millenium BCE, the predecessors of the - people began expanding from the coastal plains in modern-day Liang. Migrating eastwards into the Nanyo region, the Kambu-Raman brought wet-rice farming and bronze-making techniques into Nanyo. Intermingling with the peoples that inhabited the Thơm river floodplains gave rise to the Thơm Đà culture around 1,000 BCE, notable for large-scale agriculture and the casting of elaborate bronze drums. In the north, people on the Ratanarmyay peninsula (ရတနာမြေ) were some of the first in the world to domesticate pigs and poultry.

Most regions in Nanyo had transitioned to iron age cultures by 500 BCE, alongside the emergence of large-scale rice farming settlements and trade as far as the Huaian Shan Dynasty. A shift in the opulence of burials from this period testify to an improvement of food availability and trade, which reached as far as Arshavat in the north.

Ancient era
Around 200 BCE, the oldest known city-states emerged along the Laymyo river (လေးမြို့မြစ်) in northern Nanyo, founded by the Shwe People (ရွှေ) that migrated across the Thagya mountain range (သိကြားတောင်တန်း) from present-day northern Liang. Located along the overland trade route between Arshavat and the Hua, the Shwe city-states and southern Kambu-Raman cultures became heavily influenced by Arshavati culture, importing Siddhism and cultural, architectural and political concepts, which would have an enduring influence on the development of the entire Nanyo region.

The first major kingdom to form in Nanyo was the Kambu-Raman or Daic Vyadhapura Mandala in the first century CE, which is known mainly from Hua and Shwe texts and is believed to have controlled the entire area from the Thom river plain in the west to the Hồng river delta in the south-east. This mandala was a loose confederation of vassalised city-states under a central dominant polity, of which the city-state Vyadhapura held the position for the longest. The Arshavati-influenced Vyadhapura Mandala was considered by the Hua to be separate from the disorganised Kambu-Raman city-states in the Liang coastal plains, which had been greatly influenced by and had adopted Hua culture. A powerful trading polity, the Vyadhapura Mandala was key in the expanding trade between Arshavat and the Hua, controlling not only the coastal routes but also the inland routes along the Kửulong river.

In the 2nd century, the Huaian Zhao dynasty began expanding into the Liang coastal plains, vassalising the Kambu-Raman city-states in the area and causing a large migration into the modern-day Western Plain and Thom river plain areas. These Hua-influenced Kambu-Raman people, today considered the Early Song civilisation, displaced the Vyadhapura Mandala from the region by the 3rd century and established new city-states along the Thom river, developing into the. These Thom city-states variably paid tribute to the Vyadhapura and the Hua kingdoms to the west.

By the 6th century, the Shwe city-states had spread their influence into the northern Kuulong river, and at least two wars were fought between the Shwe and Vyadhapura over the central Kulong region, which was crucial to the overland trade route between Arshavat and the Hua. These wars led to a destabilisation in the Vyadhapura Mandala, and internal conflicts led to the collapse of the polity. A smaller successor, the Bhavapura Mandala, was formed by city-states in the Hong river delta, eventually extending its influence along the east coast of Nanyo up to the Pa Biển gulf.

Pre-medieval era
The Huaian Chan dynasty unified and absorbed the Song city-states as the region of Dong Jiang (東江) in the 7th century, beginning 200 years of Hua rule over the region and further introducing Hua culture to the Song. Around this time in the 7th to 8th century, the Bhavapura Mandala declined due to infighting and became ruled by Daics from Masuka. The new emerged from Tampawaddy in the northern Kuulong around the 8th century, expanding along the Kuulong river. Around 762, the Shwe in the north-east came under repeated attacks from Patharkhand, upsetting the balance of power and enabling Tampawaddy to dominate cities around the Pa Bien Gulf. In 822, the Tampan Shwesain Kingdom (ရွှေဆင်) was formed by King Taungthugyi Min after a series of wars of subjugation around the Pa Bien Gulf.

After a period of tensions between the Hua and the Shwesain Kingdom, in 861 the Hua attempted to invade the Kuulong river region. Hua offensives were rebuffed several times, most notably by the Tampan folk hero and future king Min Saw at the Battle of Sepon. Fought in 862 along the Sepon river, the Tampan army defeated the Hua using war elephants and trained tigers, a story which has been immortalised both in Dai Hoa and Hua culture since. The Hua never attempted to invade the Kuulong after 864 as internal issues, particularly in Dong Xiang, began to plague the empire.

In 898, Mahendravarman I in the Bhavapura Mandala declared independence from Masuka and formed the Prasat Empire (ប្រាសាទ) at Angkor Prasat after leading a successful revolt of several cities around the Hong river delta. Styling himself as a god-king, Mahendravarman I led the Prasat Empire to steadily expand along the east coast and up the Kuulong river as the Bhavapura Mandala began to collapse into multiple mandalas. At the same time, the Shwesain Kingdom vassalised most of the remaining Shwe cities on the Ratanarmyay peninsula by 910.

Around this period, numerous rebellions began to emerge in Dong Jiang as the Song sought independence from the Hua. In 920, the Trưng Uprising led by the former Hua general Trưng Quyền defeated the Hua at the Battle of Núi Trắng, attaining independence from the Hua and forming the Empire of Đôngsông under the Trung Dynasty. Heavily modeled after the Hua imperial system and maintaining Hua values, the Empire of Dongsong was vastly different from the other two empires in Nanyo at the time. Historians often consider the formation of the Empire of Dongsong as the start of Dai Hoa's medieval period, as the three empires in the region began to compete with each other for dominance.

Medieval era
The Prasat Empire expanded into the upper Kuulong for the first time after defeating the Shwesain Kingdom in the 1002 Aaintone War (အင်တုံ), reaching the Pa Bien gulf and pushing the Shwesain to the modern-day Yawnghwe plain and the Ratanarmyay peninsula. This began the decline of the Shwesain Kingdom, which fractured into several competing polities. From 1062, Dongsong came under the Lê dynasty, which started a policy of southward expansion along the west coast, challenging the Prasat Empire and leading to numerous clashes.

By the 12th century, the Prasat Empire extended its control over Masuka, and even had tributary states in northern Sahil. The capital of the Prasat Empire at its peak was Angkor Phnom. It became the largest polity in the Crosswind region at the time, occupying a key position along the naval trade route between Arshavat, Antar, Amphia and western Escar. 13th century texts from as far as Yamatai acknowledged the existence of the Prasat Empire as the most powerful polity in the Nanyo region. However, in 1343 the Daic ruler Si Inthrathit formed the Suwannaphum Kingdom in the Masukan islands and launched a rebellion against Kambu rule.

After defeating several Ejenate invasions between 1330 and 1350, Dongsong took advantage of the turmoil within the Prasat Empire and began to move into the Kuulong river area. This triggered the Century War, which lasted from 1352 to 1454, and saw Dongsong ultimately conquer the entire southern region of Nanyo over a 100-year period. After the final sacking of Angkor Phnom in 1443, Dongsong established an opulent new capital city located at Bắc Đô in the central Kuulong plains, which was visited in 1456 by the Yamataian explorer Ogasawara Tokimune. The Song began to impose Hua-style centralised bureaucracy, government systems, and cultural practices to the conquered regions, ending centuries of the mandala system and facing much internal resistance that sapped the Empire's strength.

During this period, the Tampan states in the north coalesced into three kingdoms, the Amarapura Kingdom (အမရပုရ) in the Yawnghwe plain and the Ketumadi Kingdom (ကေတုမဒီ) and Ratanapura Kingdom (ရတနပုရ) on the Ratanarmyay peninsula. The Amarapura Kingdom was initially a protectorate of the southern Ajam kingdoms, while Ketumadi and Hanthawaddy both claimed to be the rightful successors of the Shwesain Kingdom and continuously fought for supremacy. By 1456, Ratanapura had absorbed Ketumadi and began a series of wars against the Ajams for control of Amarapura. Ratanapura succeeded in absorbing Amarapura in 1493, restoring the unified Tampan state and forming the Ratana Empire under the Ponna Dynasty. The Ratana Empire regularly paid tribute to the Arshavati kingdoms and enjoyed good relations with the neighbouring Ajams.

By the end of the Century War and due to continued internal unrest, the Empire of Dongsong began to lose control of the western regions of their empire to the Imperial Hua Liang dynasty (仹). Between 1480 and 1520, a series of wars between the Dongsong and the Hua resulted in them being pushed out of the Songxi region and past the Ziễm river (焰江), where they were halted in the Battle of Ziem River, which remains the border between Dai Hoa and Liang to the modern day. Taking advantage of the weakened Dongsong, Ratanapura launched an invasion of Dongsong's northern regions and entered the northern Kuulong from 1532 to 1545, reclaiming their traditional areas on the northern Kuulong and the Pa Bien gulf. The Songese were pushed as far south as modern-day Bac Quan, where the border would eventually stabilise. These repeated defeats caused major internal turmoil within the Dongsong Empire, with a schism opening between the ruling, Hua-supported Lê Dynasty and the Hồ Dynasty.

Early modern era
In 1590, the first Yamataian trading post was established at Hai Fượng by Funabashi Katakuni, and later a trading post was established at Hải Môn by Chisei in 1596, marking the start of large-scale trade between Nanyo and Western Escar. A second Yamataian trading post was founded at a settlement known in Yamataian records as Matsumoto, but the settlement was razed by Masukan pirates in the 17th century and its location is uncertain. Yashiman traders rarely traveled far up the Nanyo coast due to large amounts of Jantali pirates in the area, but they did occasionally interact with Ratana.

During the 17th century, the disputes between the Lê and Hồ Dynasties had escalated. After the Tân Hợi Rebellion in 1672 by disaffected Kambu was put down, the Dongsong Empire collapsed two years later with the Dongsong Civil War between the Lê and Hồ factions. This conflict saw large-scale use of s and cannons by the Hồ, which controlled the southern coast and were able to secure large amounts of guns through trade with the Yashimans. By 1677, the Hồ stormed Bac Do and captured the city, sending the Lê into exile and forming the Song Empire. By some accounts, Yashiman mercenaries were even involved in the Dongsong Civil War, with records of armoured warriors using curved swords being involved in several battles, though some historians believe that these were merely Song troops equipped with swords purchased from Yamatai.

As the Song Empire consolidated its power, Ratana also began to expand its military to prepare for a potential threat from the Song. Nonetheless, during this period of peace, both empires built a joint trading station on the border at Bac Quan. In 1705, the inconclusive Rồng Nước War was fought between the Song and Masuka over Dep Dao after a massacre of Songese settlers on the island, but Masuka retained control of the island. A major campaign to eradicate the Jantali pirates along the eastern coast was carried out by Ratana in this period with great success, and Ratana even established an outpost on Sambiyan in 1713 with the blessing of a local king.

Colonialism in the region rapidly expanded in the 18th century after the Yashiman states stabilised, particularly with the end of the Yamataian Civil War in 1717, and the subsequent formation of the Second Empire of Yamatai and independence of Hinomoto. The Yamataians established a second trading post at Hưng Yên in 1726, signing the Treaty of Hung Yen with the Song Imperial Court guaranteeing trade and extraterritorial rights for Yamataians in the Song Empire. In 1728, Yamatai sent Mogami Hirakore to begin formal relations the Ratana court. Ratana Emperor Aung Zeya reportedly bestowed a gift of 3 elephants, 9 tigers, and 45 cases of gems to Mogami. Subsequently, the first Yamataian trading post was established at Thanlyin on the end of the Ratanarmyay peninsula.

After Yamatai attained the loyalty of the Song court, they were able to negotiate the expulsion of the Chiseians from the Song Empire. This triggered the brief Haimon War between Chisei and Yamatai in 1738, during which Yamataian and Song troops captured the Chiseian trading settlement at Hai Mon and forced the Chiseians to establish trading stations elsewhere. Yamatai began consolidating its monopoly over Western Escaric trade with the Song Empire, also driving away Hinoan attempts to establish trading posts on the Song mainland. Nonetheless, Hinomoto attained control of Dep Dao after defeating Masuka in the Tonankai War in 1744, and quickly joined the Crosswind colonial trade system.

Relations between the Song Empire and Yamatai began to decline after the 1750s as Song nobles began to question the extraterritoriality of the Yamataians, unchecked expansion of their trading posts to the size of entire port towns, and especially the Yamataian spread of Michi into the Song Empire. In 1772, the Song Emperor Hồ Đăng Dung attempted to expel the Yamataians from the Song Empire and close its borders to foreigners. When the Yamataians ignored this, the Song Imperial Army was sent to attack the Yamataian trading port at Hai Fuong in 1773, beginning the Nhâm Thìn War.

One of the first colonial wars, the Nhâm Thìn War was a total Yamataian victory by 1775. The Song Empire was forced to sign the Unequal Treaties of Hung Yen and the Song Emperor was forced to become a vassal of Empress Kanoko. Alongside the Yamataian subjugation of the Song, the Ratana Empire also experienced a decline in this period due to increased infighting within the Ratana court between reformists and traditionalists. This instability enabled the Chanhan Leung Kongsi to establish control of a territory at the mouth of the Pa Bien gulf, at the modern-day Bắc Bờ province, in 1783. Further Western Escaric colonisation of the general region would occur throughout the rest of the 18th century, with Hinomoto colonising the Jantal Islands after the Jantal War in 1784.

Colonial era
Attitudes towards colonialism began changing in Yamatai in the early 19th century, particularly with the rise of Yashiman nationalism and militarism alongside their stellar economic growth in the early industrial revolution. Securing permanent access to the rich natural resources in Nanyo was considered highly important by a large faction in the Yamataian government. In 1804, the Nanyo region reached a turning point when a group of Yamataian military officers independently carried out the Yellow Palace Incident in Bac Do, launching a coup of the Imperial Song government and proclaiming Empress Kaoruko as the new ruler of the Song Empire. Though not sanctioned by the Yamataian government at the time, the government nonetheless officially annexed the Song Empire on the 17 October 1804, administering the region as Yamataian Ekuni. The last Song Emperor, Hồ Kính Khoan, was sent into exile and took up residence in Chanha.

Major changes were brought to the region with the Yamataian annexation of the Song, including the enforcement of Yashiman as a language of administration, the introduction of public education, and the introduction of industrialisation. The Ratana Empire carried out a frantic modernisation campaign in order to protect themselves from the Yamataians, and purchased large amounts of modern weapons from foreign powers, heavily depleting the Empire's coffers. Partnerships were formed with the Chanhan Lam Kongsi in 1824 and the Tsang Kongsi in 1826, granting both companies territories within the Ratana Empire in return for weapons and funding for the modernisation campaign.

Following the 1839 military coup in Yamatai and the formation of the military regime, there was no longer any political opposition to expansionism in Nanyo. Yamatai launched the Yamatai-Ratana War in 1839, ostensibly in retaliation to the killings of three Yamataian traders in Yamethin, and rapidly invaded Ratana. Despite their attempts at modernisation, the Ratana were unable to match the Yamataian military strength and organisation and were quickly defeated, capitulating on 2 August 1840.

Initially, Yamatai opted to control Ratana through the pre-existing monarchy. However, the last Ratana Emperor Tharrawaddy Min adopted a policy of passive resistance against the Yamataians, and also often encouraged his people to follow him in non-cooperation. By 1845, the Yamataian colonial government deposed the emperor, sent him into exile, and began directly ruling the country by force, also defeating and annexing the allied Lam and Tsang Kongsis in the region between 1848 and 1853, though the Leung Kongsi escaped Yamataian annexation by pledging loyalty. In 1855, Yamatai merged occupied Ratana with Ekuni to form the colonial state of Yamataian Nanyokuni. Tharrawaddy Min would later travel to Amphia, where he later passed away in Senon.

After the merger, many Songese were sent to Ratana as soldiers, civil servants, construction workers, and traders. A general northward migration of Songese was encouraged by the Yaamtaians, who considered the Tampans untrustworthy and culturally backward to the Songese. Along with the Yamataian community, these would dominate commercial and civil life in the former Ratana. The capital of Nanyokuni was situated at Hai Fuong, which became an important hub in the Yamataian Empire. Tampan resentment of the Songese and Yamataians was strong, and there were numerous violent riots and resistance movements throughout the colony's history, particularly in the north. Though Songese collaboration was often considered the norm, there were also numerous Songese resistance efforts.

Yamataian Nanyokuni would expand again in 1878, when Yamatai formed a merger with Hinomoto in the Treaty of Fujishima. Hinoan Dep Dao and Jantal were both added into Nanyokuni, which administered them from Hai Fuong. Yamataian Nanyokuni became an important cornerstone of the Yamataian Empire, providing raw materials such as metals, wood, and rubber to Yamatai's rapid industrialisation and colonial efforts elsewhere. In 1893, a Chanhan coup occurred in the Leung Kongsi and the polity began supporting Thura Zin's Tampan revolutionary movement in the north. After Yamatai defeated Thura Zin's rebellion, they attacked the Leung Kongsi in 1899, annexing the region and ending the polity's long existence.

The outbreak of the First Escar-Varunan War in 1918 led to the first large-scale conscription of locals into the Yamatai Imperial Army, with troops sent to fight in Valeya and Chisei. Minor naval battles between the Yamatai Imperial Navy and the Chiseian Royal Navy occurred in the waters around Nanyokuni, and Dep Dao was briefly invaded by Chisei in 1920 but was quickly repulsed. In the post-war period, large amounts of Nanyo people of all races were sent to the Yamataian New Territories as well as Qieli to act as cheap labour, with many eventually settling in those areas.

Seeking to consolidate their control over the northern region of the colony, the Yamataian colonial government decided to shift the capital to a planned city built around Bac Quan, then a small tin-mining town on the old border between the Song and Ratana empires. The new colonial capital was inaugurated on 13 February 1931. In the same year, Trịnh Hạc Đính, Nguyễn Kim Toàn, U Myo Win, and Htun Min Myat formed the Socialist Party of Dai Hoa at Thanlyin on 15 October. This was not the first collectivist party to be formed in Nanyokuni, but was the first to embrace Bành Công Lý's vision of "Dai Hoa" as a unified state of all the Nanyo races.

During the Second Escar-Varunan War, Nanyokuni initially served as a base from which the Yamataian military supported offensives against Chiseian Masuka and the Chiseian offensives against Kita Imoshima. However, after 1939 the colony became a front line when Yamatai invaded Arshavat as part of its commitment to its Niihama Pact ally, Kuiju. The Yamatai Imperial Army invaded Arshavat through the Yawnghwe Plain and carried out naval invasions and strategic bombings from Jantal, pushing deep into Arshavat. By late 1940, Arshavat had blunted the Pact offensive and began to push Yamatai back to Nanyokuni, and in mid 1942 Arshavat invaded the colony. Arshavat's invasion was assisted by a general uprising and guerilla warfare conducted behind Yamataian lines by the armed wing of the Socialist Party of Dai Hoa, the People's Army of Dai Hoa, which by this time had grown into the largest and most organised resistance militia within Nanyokuni.

Fighting in Yamataian Nanyokuni continued after the Oyashima Armistice was signed between Yamatai and the Escaric Allies, as Yamatai had made no such agreement with Arshavat. The Allied-Yamatai Treaty of Cooperation was a pact signed between Yamatai and their former enemies as part of the armistice agreements to cooperate in fighting against Arshavat in Nanyokuni due to fears of collectivist expansionism. As open war threatened to break out between the Escaric Allies and Arshavat, both sides agreed to end the fighting on 17 January 1945 with the Treaty of Lâm Đồng. This was an armistice that among other things divided Nanyokuni between Arshavati and Yamatai-controlled areas, marking the end of the Second Escar-Varunan War.

Post-War Dai Hoa
After the partition, Yamataian Nanyokuni was reduced to the modern-day Western and Southern Regions. On 1 February 1945, Trịnh Hạc Đính declared the independence of the Union of Dai Hoa at Bac Quan, and he was declared the first President of Dai Hoa as the Chairman of the Socialist Party. Initially, only Arshavat and a few other socialist countries recognised the independence of Dai Hoa. Yamatai continued to control Yamataian Nanyokuni as a colonial state, but after several uprisings and at the urging of the Escaric Allies, it released the colony as the Song Republic under President Hàn Bảo Lâm. Han was the leader of the National Front Against Oppression guerilla army, which was opposed to collectivism and was considered a strong candidate to potentially reunify Nanyokuni under a democratic and capitalist government. Dai Hoa and the Song Republic both claimed to be the rightful rulers of the Nanyo region.

During the immediate post-war period, and as the Escaric Divide began to develop, both Dai Hoa and the Song Republic began to receive large amounts of developmental assistance from their respective patrons. However, as Arshavat had been devastated by the successive Endwar and Second Escar-Varunan Wars, aid to Dai Hoa was considerably lesser than that given to the Song Republic, mainly from Chanhan contributions. Nonetheless, both states began to slowly recover from the war damage.

The balance of power in Nanyo shifted in 1953 after Song Republic Defence Force General Lê Ðức Toàn carried out a coup in the Song Republic, installing a military junta, the National Emergency Council. Le was convinced that the civilian government was not doing enough to prepare for a war to defeat the collectivists, and it is believed by some historians that his coup succeeded due to the assistance of a foreign power. Under Le, the Song Republic began massively expanding its military, with the SRDF expanding 200% in just four years. There was also an increase of Three Powers Alliance troops in the Song Republic. In response, Dai Hoa also began building up its military forces along the border.

Around the mid 1950s, Arshavat attempted to depose Trinh Hac Dinh as the Chairman of the Socialist Party due to his departure from collectivist ideological conventions through the implementation of the Tu Lap ideology, but he was able to resist these efforts. Shortly after, on 15 June 1957, the Dai Hoa Unification War broke out when the People's Army of Dai Hoa crossed the border and attacked SRDF troops in the Battle of Gia Nghĩa. In one of the first proxy wars of the Escaric Divide, the Republican forces were assisted by the Three Powers Alliance while Dai Hoa received assistance from Arshavat and other collectivist states.

In November 1957, Dai Hoa managed to capture the entirety of what is currently the Western Region, forcing the Three Powers Alliance to declare war on Dai Hoa and officially enter the war on the Republican side. Chiseian, Yamataian and Yeongseoni troops, air, and naval forces began attacking Dai Hoa, pushing the People's Army back north towards Bac Do. In response, Arshavat deployed 800,000 volunteer troops to assist Dai Hoa in May 1958. The situation soon devolved into a stalemate and in September 1958 the Three Powers Alliance launched an amphibious invasion of the Ratanarmyay peninsula, landing at Yamethin. Threatened by Allied forces so close to the Arshavati border, Arshavat decided to deploy nuclear weapons on Dai Hoa to break the Allied offensive, bombing Yamethin, Đác Lác, and Thành Đông.

After the use of nuclear weapons, the Three Powers Alliance immediately withdrew from the Song Republic to avoid escalating the ongoing border tensions between East and West Kuiju to a similar nuclear war, instead leaving large amounts of weapons for the Republican forces' use. This also marked an escalation of Trinh Hac Dinh's opposition to Arshavat, with Trinh denouncing Arshavat for their use of such devastating weapons on Hoaian soil and demanding that all Arshavati troops be withdrawn, signalling the developing Hoa-Arshavati Split. Fighting between Dai Hoa and the Song Republic continued, and as the tide turned back against the Republican forces, they began to evacuate their government and military apparatus to Dep Dao. Trinh Hac Dinh declared the end of the Dai Hoa Unification War on 2 May 1960, when the last pockets of Republican resistance on the mainland were defeated.

Dai Hoa's victory in the First Hoaian War was followed by a second period of reconstruction, with Trinh Hac Dinh and the Socialist Party of Dai Hoa closely embracing their Tu Lap ideology as a localised offshoot of collectivism and enacting multiple five-year plans to revitalise the economy and particularly the agricultural sector. As Dai Hoa attempted to assert itself in the socialist world, Tu Lap was often criticised by other collectivists for its strong nationalist and populist elements. By 1965, Dai Hoa was the collectivist world's largest producer of rice.

Trinh Hac Dinh died in 1968, triggering a brief power struggle for leadership of the Socialist Party, which was won by Đoàn Hùng Dũng. After Trinh's death, Doan and the Socialist Party of Dai Hoa were pressured by Arshavat and other collectivist parties to denounce Trinh and abandon Tu Lap, but Doan instead decided to split entirely from the global collectivist movement. In 1970, Doan was denounced as a revisionist by Arshavat.

Plans were made for Dai Hoa to start a socialist bloc to compete with the global collectivists and Western Escar, a "Third Sphere" as described by Doan's Four Spheres Theory, and secret negotiations were carried out with the People's Democratic Rejuvenation Party in Masuka in 1977. Full military support and developmental aid were promised to the MPDRP if they managed to successfully take over the nation, and in 1980 the People's Army invaded Masuka as part of the Masukan Civil War, attaining victory by 1982. Masuka afterwards became a Hoaian client state within its "Third Sphere". This alarmed Arshavat, and in November of that year the Hoa-Arshavati Border War was inconclusively fought over six months.

In 1985, Doan Hung Dung stepped down as Chairman and U Myint Min was chosen as his successor.

May 12, 1986: The 1986 Crosswind Sea Incident where Yamatai Imperial Navy fighters shot down four Dai Hoa MiG-28s (at the loss of one of their own)

Throughout the 1980s, Dai Hoa also formed ties with the Communist Party in Sahil, which managed to take over the country's government by 1988. After the formation of the People's Republic of Sahil, Dai Hoa launched an invasion of Sahil in the Hoaian-Sahilese War from 14 March 1988. However, the People's Army was not able to secure a foothold outside of the major cities, and fighting soon bogged down as the Sahilese loyalists used guerilla warfare. From 1991, Arshavat also intervened on behalf of the loyalist. Dai Hoa withdrew from Sahil by April 1992, and their Sahilese client state collapsed soon after.

U Myint Min stepped down in mid-1992 to take responsibility for the loss in Sahil, and was replaced as Chairman and President by the reformist Nguyễn Duy Cường, who spearheaded a movement to reinterpret Trinh Hac Dinh's ideology. Though he faced much resistance from party hardliners, Nguyen was able to begin rapprochement with the Western Escaric states, previously their ideological enemies. In 1994, Yeongseonin companies were amongst the first to be invited to talks to develop new Special Trade Zones, and the first of these zones were established in Hai Fuong, Hai Mon, and the Hong River Delta region. The Second Hoa War in 1997 saw the final defeat of the Song Republic, which had fallen out of favour with Western Escar, finally unifying the entire Nanyo region under Dai Hoa.

Following the opening of Dai Hoa's economy to the capitalist states, large amounts of investments began entering the country and the country experienced an economic boom. In 2004, Nguyen Duy Cuong announced the National Path to Prosperity and the Three Reforms Initiative, aiming to introduce technological modernisation, economic growth, and ideological strengthening through the country. The Socialist Party began market liberalisation, privatising some state industries and joining the Wanshu Development Summit in the same year. During the 2010 Masukan War, Dai Hoa provided minor logistical support, and contributed some troops to the YOCHIBU that occupied and rebuilt Masuka after the war.

In 2012, Nguyen Duy Cuong retired and Nguyễn Minh Khang was elected the Chairman of the Socialist Party and President of Dai Hoa. Nguyen Minh Khang, considered by some as a Hoaian nationalist, began a military expansion program that included several costly purchases from Chisei and Yamatai. Several infrastructure projects were also begun. Starting in February 2018, a major bird flu pandemic spread in southern Dai Hoa, causing a national crisis that spilled over the Masuka and eastern Liang. However, with the assistance of Chisei and Yamatai, a vaccine was developed and the situation came under control by mid-2019.

Geography
Dai Hoa is located in south-east Escar, and occupies the Nanyo region, with a total land area of roughly 302,403.02km².

Nanyo region • Ratanarmyay peninsula • Hinta Bien gulf • Pa Bien gulf • Bao Sanh river • Hong river • Kuulong river • Laymyo river • Thom river • Tonle river • Western Highlands • Phaodai Highlands • Phuong Hoang Mountains • Thagya Mountains • Mount Pautalaka

Dai Hoa is located on in south-east Escar. It covers a total area of approximately 287,700 km2. Dai Hoa's land is mostly hilly and densely forested, and two major mountain ranges account for 40% of the country's land area and tropical forests cover around 42%. Dai Hoa is dominated by two mountain ranges, the Hoàng range and the Trường Sơn range, which are divided by the Cửulong river valley. The country is roughly bisected by the long Cửulong river, which runs from the northern Hoàng range to the Cửu Long delta in the south-east. The Cửulong river is considered a cradle of civilisation in south-east Escar.

The country has three major river systems, the Cửulong river, the Sông river in the north, and the Pháođài river in the south.

Gulfs
Northern one: ဟင်္သာသိမ် (Hinthathein), Hiˇnta Biển; " Sea/River"

Southern one: ပုသိမ် (Pathein), Pa Biển; "Wide Sea/River"

Government and politics
Dai Hoa is a unitary one-party socialist republic that follows the Tu Lap ideology. Although Dai Hoa remains officially committed to socialism as its defining creed, its economic policies have grown increasingly capitalist under the Hoaian Way To Prosperity policy. Under the constitution, the Socialist Party of Dai Hoa (CPDH) asserts their role in all branches of the country's politics and society, with over 3 million members.

The President of Dai Hoa is the elected head of state and the commander-in-chief of the military, serving as the chairman of the Council of Supreme Defence and Security, and holds the highest office in Dai Hoa as well as performing executive functions and state appointments and setting policy. The Chairman of the Socialist Party of Dai Hoa heads the CPDH and oversees the party's national organisation. Nguyễn Minh Khang is the current President of Dai Hoa and is also the Chairman of the CPDH.

The premier is the head of government, presiding over a council of ministers composed of five deputy premiers and the heads of 26 ministries and commissions. Only political organisations affiliated with or endorsed by the CPDH are permitted to contest elections in Dai Hoa. The current premier is 	Phạm Quốc Ðại.

The National Assembly of Dai Hoa is the unicameral state legislature composed of 498 members. Headed by a chairman, it is superior to both the executive and judicial branches, with all government ministers being appointed from members of the National Assembly. The Supreme People's Court of Dai Hoa, headed by a chief justice, is the country's highest court of appeal, though it is also answerable to the National Assembly. Beneath the Supreme People's Court stand the provincial municipal courts and many local courts. Military courts possess special jurisdiction in matters of national security. Dai Hoa maintains the death penalty for numerous offences.

Military
The People's Army of Dai Hoa is the military force of Dai Hoa, numbering roughly 306,000 active troops and 910,000 reserve troops, though some estimates including paramilitary forces place the number as high as 5 million. It comprises of five military branches, the Ground Force, Navy, Air Force, Air Defence Force and Border Defence Force, as well as the national militia, the People's Resistance Army.

The People's Army of Dai Hoa is managed by the Ministry of Defence of Dai Hoa, which is itself subordinate to the Central Military Commission of Dai Hoa, an organ of the CPDH. According to the constitution, serving in the armed forces is a duty of all Songese citizens, and many Songese are members of the People's Resistance Army, receiving basic military training. Dai Hoa uses a selective draft system for all males over the age of 21. They are subjected to varying lengths of active service depending on the duration of reserve training in the People's Resistance Army and their level of education. Those who have completed three years or more of PRA training will be exempted entirely.

Defence spending in Dai Hoa is on the rise, and in 2015 Dai Hoa's military expenditure was roughly 8% of its total government spending. An aggressive modernisation program with the assistance of Yamatai and Chisei has been ongoing since 2006, with the aim to introduce more advanced domestic arms to replace ageing Altiplano-produced equipment.

Law enforcement

 * People's Security Force of Dai Hoa
 * People's Militia of Dai Hoa - Police
 * State Security Force of Dai Hoa - KGB

Administrative divisions
Dai Hoa is divided into 47 provinces, 1 National Capital District, and 1 Semi-Autonomous Region.



Economy
Dai Hoa's economy is one of the fastest growing economies in the world. Throughout the history of Dai Hoa, the economy has largely been based on agriculture, particularly wet rice cultivation. Mining is another major primary industry in Dai Hoa, with substantial deposits of metals and minerals in the country. Bauxite mining takes place in the south-west, while the eastern region has substantial deposits of coal, gold, bauxite, tin, copper, and other valuable metals. In the northern region, precious stones such as rubies, sapphires, pearls, and jade are also mined, and 90% of the world's rubies come from Dai Hoa. A growing industry of the production of rare earth elements, which can be found in the northern region of Dai Hoa as well.

The country operates a mixed socialist market economy, guided by broad five-year plans decided upon at the plenary sessions of the Central Committee and National Assembly. Farms, factories, and capital goods are partially collectivised, with increasing private ownership since the economic reforms in the 1990s.

Ga Banh Mi

Agriculture
Agriculture has been the traditional economic base of the Nanyo Region for centuries, and agrarianism is a cornerstone of the Socialist Party's Tu Lap ideology. The main agricultural product is rice, which covers about 60% of the country's total cultivated land area. Dai Hoa has been the largest rice exporter in the world since 2005, and the country is also the world's largest producer of cashew nuts, the largest producer of black pepper, and the second-largest exporter of coffee. Other agricultural exports include tea, rubber, and fishery products.

Agriculture's share of Dai Hoa's GDP has fallen in recent decades, declining from 42% in 1999 to 20% in 2015 as production in other sectors of the economy has risen.

Science and Technology
The first Songese person in space was Trương Phương Hoa, who was also the first Songese woman and first Songese person to perform an EVA during a 2015 mission to Heiwa. Trần Ánh was the second Songese person in space and the first Songese man in space, also visiting the Heiwa for two weeks of experiments in 2018.

Transportation
Much of Dai Hoa's modern transportation network traces its roots to the Yamataian colonial era, where they were developed to facilitate the transportation of raw materials to main ports.

Languages
According to the constitution, Dai Hoa has two national languages, and. The language with the largest number of speakers is Songese, and it is also used as the language of the government except in the Northern Region, where Tampan is the majority language and is used by local government alongside Songese. Other major languages spoken in Dai Hoa include, , and.

Besides the major languages, the government officially recognizes 24 distinct minority languages within the country, but it is believed that over 100 exist. However, figures from other sources vary primarily due to differences in definition of the terms "language" and "dialect", with some sources recognising 1,469 minority languages in Dai Hoa.

The script used for written Songese is Chữ Tây (チウ˙ タイ), a phonetic lettering system based on the Yashiman  syllabary, with several new characters and tonal diacritics. Chu Tay has also been adopted by many of the minority languages. The other main script used in Dai Hoa is written Tampan, which consists of circular and semi-circular letters and was adapted from southern Arshavati scripts in the 5th century. Other writing systems often seen in Dai Hoa include Daic and Kambun.