Soon after its formation, the Land of Mountains was attacked by the exceedingly powerful group, the Kagekenin. This group destroyed anything in their path and killed countless people. It was stopped by Yamagakure's First Yamakage. In the harsh years that followed, the Land of Mountains slowly recovered and became accustomed to war. This was seen by other countries, who had been working to increase their military power, as a strength. As with other countries, the Land of Mountains is lead by a daimyō and, unique to this nation, a shōgun.