Yamatai Imperial Army

The Yamatai Imperial Army (山都帝國陸軍) is the ground-based armed force of Yamatai, part of the Yamataian Armed Forces. The Imperial Army consists of over 191,300 active troops, and around 61,000 reserve personnel as of 2020. It is the largest service branch of the Yamataian Armed Forces.

The Imperial Army is one of the oldest military institutions in the world, tracing its foundation to 875, when the Kashiwagi Code designated the formation of a centralised military for the First Empire of Yamatai. The modern Imperial Army was founded in 1711 at the start of the Second Yamataian Civil War.

Prior to the establishment of the Imperial Army, the Yamataian government relied on armies raised by the feudal clans that ruled the Yamataian islands. The modern Imperial Army was first established in 1715, at the start of the Yamataian Civil War, when it was created by Imperial Order from Crown Princess Chinami, consolidating the armies of the five pro-Imperial clans under Imperial leadership as the first national army of Yamatai.

The Imperial Army is administered by the Yamataian Ministry of Defence and is commanded by the Commander of the Army, a member of the General Department of National Defence.

The Imperial Army is recognised as one of the most powerful and technologically advanced in the world. It has fought in numerous major regional and global conflicts, including the Second Northern War, the First and Second Escar-Varunan Wars, the Hoaian War, the Kuijuan War, and the 2010 Masukan War. The Imperial Army has also been deployed to numerous humanitarian aid and coalition missions as aprt of the Ordic League or HECO, with overseas deployments including the Yamatai Mainland Ground Defence Force in Chisei, or the YOCHIBU in Masuka.

Formation
Until after the Yamataian Civil War, Yamatai never had a standing army loyal to the state, relying on militias raised by and loyal to feudal lords, or hired mercenaries. When foreign expeditionary forces or national-level military forces were required, the cooperation of the feudal lords was necessary, often requiring exorbitant bribes from the central government.

Matsubara Doctrines



Escaric Divide
Under the 1980 Treaty of Mutual Defensive Cooperation, Yamatai began deploying armed forces into Chisei to defend against a Arshavati land invasion through Jiquan. Facing major opposition from civilian lobbyists both at home and abroad, facilities purchased and built in Chisei by the Yamataian government went unoccupied for years. The first Imperial Army troops were finally deployed to Chisei in 1987, though Imperial Air Force equipment had already bee deployed in Chisei in secret since 1975. The Yamatai Mainland Ground Defence Force was formally founded in 1993, primarily comprising the Fourth Army Group but also including units from the Imperial Marines.

21st Century
In 2010, the Imperial Army was involved in the 2010 Masukan War, the HECO invasion of Pulau Todak, unveiling the new Type-12 Main Battle Tank.

Organisation
See also: Organisation of the Yamatai Imperial Army

The Yamatai Imperial Army is organised into six Area Armies, known as Homen-Sonae. Each Area Army is the equivalent of an army group and is stationed within a specific geographical region of Yamatai. These are the Eastern Area Army in Akitsukuni, the Southern Area Army in Hōshima and Hasukuni, the Western Area Army in Ōshima, the 3rd Area Army in Harukuni, and the 6th Area Army in Hinomoto. The final Area Army equivalent is the Yamatai Mainland Ground Defence Force, which is deployed in Chisei as part of the Yamatai-Chisei Treaty of Mutual Defensive Cooperation.

The highest-ranking officer in the Imperial Army is the Marshal-General of the Imperial Army (Gensui Sou-Taishou), who is considered the overall commander of the Imperial Army and is a member of the Integrated Staff Headquarters (統合参謀本部; "ToSa Honbu"). Through the ToSa Honbu, the Marshal-General reports directly to the Minister of Defence, who in turn advises the Prime Minister of Yamatai on defence matters and dispenses instructions to the Imperial Army from the civilian government.

Tactical organisation
The basic unit is the Kumi, which is a specialised company-sized unit.

Kumi are organised into Rentai, which can be specialised or combined-arms.

Rentai and various independent Kumi are organised into Shidan, which are combined-arms regiment-to-division-sized units

Every Sonae is made up of various Shidan as needed; each Shidan is based on a location on the battle line; centre, left flank, right flank, rearguard, reserves, and support

Sonae are organised into Dai-Sonae

Dai-Sonae are organised into Homen-Sonae

Imperial Guards Shidan
Main article: Yamatai Imperial Guards Shidan

The Yamatai Imperial Guards Shidan is a special independent shidan administratively under the Eastern Area Army, though the units are based throughout Yamatai and are able to be deployed on an ad hoc basis. The Imperial Guards are elite units that mostly specialise in special forms of warfare, such as airborne or amphibious operations. The bulk of the Imperial Guards is comprised of airborne rentai, though there is also a single armoured rentai and a marine rentai. The Imperial Guards are not affiliated with the Yamataian Imperial Royal Guards. Both units are known by different terms in the Yashiman language.

Special Operations Command
Main article: Imperial Army Special Operations Command

Special forces operators and units in Yamatai are popularly known as TokuSa, which is short for Tokushu Sakusen Butai (特殊作戦部隊; Special Operations Force). The Imperial Army operates four special forces rentai, grouped under the Imperial Army Special Operations Command. Special Operations Command is a branch-level asset that answers directly to the Imperial Army General Staff Headquarters, though three of the four individual rentai are currently attached to Area Armies. The 110 TokuSa Rentai is attached to the Eastern Area Army, the 310 TokuSa is attached to the 6th Area Army, and the 510 TokuSa is attached to the Mainland Ground Defence Force. The 210 TokuSa Rentai remains directly under Special Operations Command and is considered a strategic-level asset.

Each TokuSa rentai includes three TokuSa kumi, referred to in official translations as "special forces groups", comprising of three to six teams of special forces operators. Imperial Army TokuSa are trained to carry out missions involving counter-terrorism, combat search and rescue, hostage rescue, direct action, special reconnaissance, and others, often against high-value targets. The majority of TokuSa operations remain highly classified.

Army TokuSa operators are selected from the Imperial Guards Shidan as well as from volunteers throughout the Army. Candidates must pass the gruelling six-week TokuSa Selection Course. Within the TokuSa, 310 TokuSa Rentai is specially trained for counter-terrorism and counter-insurgency operations and are deployed in Hinomoto. 210 TokuSa Rentai is well-regarded in popular culture and is often considered to be the one of the top special forces until in the Yamataian military, alongside the Umibozu Unit.


 * Imperial Army Special Operations Command
 * Special Operations HQ
 * Special Operations Training Unit
 * 110 TokuSa Rentai
 * 111th TokuSa Kumi (Tanto)
 * 112th TokuSa Kumi (Lizard)
 * 113th TokuSa Kumi (Falcon)
 * 210 TokuSa Rentai
 * 211th TokuSa Kumi (Yari)
 * 212th TokuSa Kumi (Yamabushi)
 * 213th TokuSa Kumi (Oni)
 * 310 TokuSa Rentai
 * 311th TokuSa Kumi (Shuriken)
 * 312th TokuSa Kumi (Tiger)
 * 313th TokuSa Kumi (Yumi)
 * 510 TokuSa Rentai
 * 511th TokuSa Kumi (Samurai)
 * 512th TokuSa Kumi (Carp)
 * 513th TokuSa Kumi (Dragon)
 * Special Operations Support Unit