Genkō War in the context of "Kamakura Shogunate"

The Kenmu Restoration (Japanese: 建武の新政, Hepburn: Kenmu no shinsei) was a three-year period of Imperial rule in Japanese history between the Kamakura period and the Muromachi period from 1333 to 1336. The Kenmu Restoration was an effort made by Emperor Go-Daigo to overthrow the ruling Kamakura Shogunate (de facto ruled by Hōjō clan) and restore the Imperial House to power in Japan, returning to civilian government after 148 years of de facto military government from Kamakura. Go-Daigo launched the Genkō War in 1331 against the Kamakura Shogunate but was defeated and forced to exile to the Oki Islands. Go-Daigo launched a second uprising, and with the assistance of the defected Kamakura general Ashikaga Takauji and rebel leader Nitta Yoshisada, defeated the Kamakura Shogunate at the siege of Kamakura in 1333. The Imperial House was restored to power but Go-Daigo's policies failed to satisfy his major samurai supporters and most Japanese people. The Kenmu Restoration was ultimately overthrown when Takauji became Shōgun and founded the Ashikaga Shogunate in 1336, beginning the "Northern and Southern Courts" period and the Muromachi period.

The Kenmu Restoration was the last time the Emperor of Japan held significant power until the Meiji Restoration in 1868.

Emperor Go-Daigo (後醍醐天皇 Go-Daigo-tennō) (26 November 1288 – 19 September 1339) was the 96th emperor of Japan, according to the traditional order of succession. He successfully overthrew the Kamakura shogunate in 1333 and established the short-lived Kenmu Restoration to bring the Imperial House back into power. This was to be the last time the emperor had real power until the Meiji Restoration in 1868. The Kenmu restoration was in turn overthrown by Ashikaga Takauji in 1336, ushering in the Ashikaga shogunate. The overthrow split the imperial family into two opposing factions between the Ashikaga backed Northern Court situated in Kyoto and the Southern Court based in Yoshino. The Southern Court was led by Go-Daigo and his later successors.

The 1333 siege of Kamakura was a battle of the Genkō War, and marked the end of the power of the Hōjō clan, which had dominated the regency of the Kamakura shogunate for over a century. Forces loyal to Emperor Go-Daigo and led by Nitta Yoshisada entered the city from multiple directions and destroyed it; in the end, the Hōjō leaders retreated to Tōshō-ji, the Hōjō family temple, where they committed suicide with the rest of the clan.