High Quality Content by WIKIPEDIA articles! The Bombing of Singapore (1944–1945) was a military campaign conducted by the Allied air forces during World War II. United States Army Air Forces (USAAF) long-range bomber units conducted 11 air raids on Japanese-occupied Singapore between November 1944 and March 1945. Most of these raids targeted the naval base and dockyard facilities on the island, though several minelaying missions were conducted in nearby waters. After the American bombers were redeployed, the British Royal Air Force assumed responsibility for minelaying operations near Singapore and these continued until 24 May 1945.