 The early years of Japan's Tokugawa shogunate were unsettled, with warring factions battling for power.The causes for the fighting were in part pretextural, but the outcome brought diminished armed conflicts after the Siege of Osaka in 1614–1615.The next two-and-a-half centuries of Japanese history were comparatively peaceful under the successors of Tokugawa Ieyasu and the bakufu government he established.