Three Kings' War

The Three Kings' War was a military conflict in the Kingdoms of Etrand and Froturn that resulted in a two-year regime-change in Etrand, and a permanent regime-change in Froturn. If we disregard the Etrandish intervention in the Froturnish Civil War of 809 AEKE, this was the last time in history that Froturnish and Etrandish soldiers fought against each other. This conflict was also the only time in history that Froturn succesfully invaded and occupied Etrand.