Izoku Kyowa

Izoku Kyowa (一族協和) is a pan-Yashiman ideology that espouses the unification of Chisei and Yamatai, or more broadly the unification of all states with a Yashiman population, including minorities, such as Achkland and Yeongseon. It is closely related to Yashiman nationalism, which asserts the view that the Yashiman people constitute a single nation due to shared traditional and cultural traits. Though it originated in and was primarily popular in Yamatai, Pan-Yashimism reached the heights of its international popularity in the colonial era, particularly the turn of the 20th century and pre-Endwar periods, when Chisei was on the decline and Yamatai had seemingly taken its place.

Advocated of Pan-Yashimism claim that unifying the Yashiman nations would enable them to resist external competition and threats to their rich traditions, returning to a fundamental cultural root with the goal of protecting the unique Yashiman culture and language. Critics of Pan-Yashimism label it as a racialist concept mixed with elements of ultranationalism to justify a Yamataian imperialist agenda. Arguments against Pan-Yashimism often cite the hypocrisy of the movement, in that after the centuries of separation the various Yashiman communities have developed in their own directions and are no longer mutually identical, with such a merger definitely resulting in the destruction of at least one side's uniquely developed culture. The Yamataian absorption of the Empire of Hinomoto is often used as an example.

History
Pan-Yashimism was first developed by theorists in both Chisei and Yamatai during the 1840s and 1860s, contributing to the rise of Kayakoism and the Sakura Revolution carried out by Empress Kayako. Due to Pan-Yashimism, one of the goals of Imperialist Yamatai was the concept of Greater Yashima, a merger of Yamatai, Chisei, their respective colonial empires and potentially other Escaric nations, with the ultimate purpose of securing Yashiman culture in the face of a predicted future race war with Amphia. Citing previous Yamataian rule of parts of Chisei in the 16th century, Pan-Yashimist thinkers began to espouse the belief that the Yashiman race was destined to merge as a single state, with foreign cultures having been responsible for the disintegration of such attempts in the past. Pan-Yashimism can also be linked to racial tensions in Chisei.

The negotiated merger between Yamatai and Hinomoto, which had been facing major economic problems and backwardness due to their century-long self-imposed isolationism, was also partly due to Pan-Yashimist belief in Hinomoto. Some segments of the Hinoan government believed that joining with Yamatai and creating a wider Yashiman super-nation would be beneficial for Hinomoto, and believed that Hinomoto would eventually attain superiority as they were the progenitors of much of modern Yamataian culture. Later on, however, Hinoan culture was increasingly stamped out and replaced by Yamataian characteristics.

Prior to and during the First Escar-Varunan War, various Pan-Yashimist lobbies and activist groups in Chisei actively attempted to complete a merger between Chisei and Yamatai, contributing to a substantial fifth column movement that enabled Yamatai to invade mainland Chisei, forming the New Mainland Territories of the Greater Empire of Yamatai. Ultimately, these New Territories and the momentary conquest of larger parts of Chisei in the Second Escar-Varunan War would be the greatest extent that Yamatai would ever merge with Chisei.

By the end of the Endwar, Pan-Yashimism had lost its appeal, particularly in Chisei, where Yamatai had killed millions and caused vast damage. In Yamatai, Pan-Yashimism became lumped in with other ideologies as an idealistic dream in the characteristic post-defeat depression that afflicted Yamatai. However, Pan-Yashimism would again become popular amongst far-right groups towards the end of the 20th century, as both Yamatai and Chisei became some of the most highly-developed nations in the world together, and cooperation between the nations unprecedentedly became the new normal. The largest and most well-known modern Pan-Yashimist organisation is the Greater Yashiman Organisation.