Following the Japanese Civil War, Korean nationalists overthrew the Japanese puppet government and reinstated the monarchy, with Yi Un being coronated as emperor. Yi Un then organized an Imperial Government which conquered non-Chinese Korea, creating the Korean Kingdom, the successor to the Korean Empire, on December 3, 1953.
Effort to reunify
Throughout their existence, governments of North and South Korea attempt to unify the peninsula. A series of negotiations between the 2 countries lead to the creation of the Korean Pact, an economic and political union between to the 2 countries. This union grew into a confederacy, as the 2 nations would act as 1, if each government unanimously agreeing on an issue. Both government slowly granted power over their territory, and combined their armies into one: the "Korean People's Liberation Army". As the 2 countries drifted closer together, both began to discuss unification. On January 31, 1988, both nations voted for unification. On February 12, 1988, both governments finished drafting a constitution, which was ratified 5 days later. This brought an end to Korea's division, with both governments in a constitutional union with each other.