The Bougainville Campaign (Operation Cherry Blossom) was a series of land and naval battles of the Pacific campaign of World War II between Allied forces and the Empire of Japan. It was part of Operation Cartwheel; the Allied grand strategy in the South Pacific.

The campaign took place in the Northern Solomons in two phases: the first phase; in which American troops invaded and held the Perimeter around the beachhead; lasted from November 1943 through November 1944; the second phase; in which British Commonwealth troops attempted to mop up pockets of starving; isolated but still-determined Japanese; lasted from November 1944 until August 1945; when the last Japanese on the island surrendered. Pictures From History