Land of Mountains Civil War

The was a conflict that followed shortly after the  in the Land of Mountains.

History
Sometime following the Third Shinobi World War, Ryun Uchiha returned to Goddessdrop Mountain in the land, where his master's academy was left vacated. Over the years, Ryun gathered a significant following and gained the support of the daimyō — creating a fledgling Yamagakure around his master's old academy in the hopes of uniting the Land of Mountains under a single hidden village, as had been done in other nations. Ryun then declared war on the clans that refused to join him, aiming to beat them into submission or eradicate them entirely to prevent them from being a threat to the growing village and nation.

Though a brutal military leader, Ryun gained many of the clans' respect by personally fighting on the front lines along with his supporters, earning him the support of clans who remained on the fence. Chikagakure, a resistance point for the remaining clans, lead by the Mochizuki Clan. Ryun's victory, much of which was single-handed, is what earned him the vote of becoming the village's first Yamakage (山影, Mountain Shadow). While only a local title at first, it eventually gained world notice.