History: Pacific War

The Pacific War saw the Allied powers against the Empire of Japan, the latter aided by Thailand and to lesser extent by its Axis allies Germany and Italy; it culminated in the atomic bombings of Hiroshima and Nagasaki by the United States and the Soviet invasion of Manchuria, resulting in the surrender of Japan and the end of World War II on August 15, 1945. The surrender of Japan occurred aboard the battleship USS Missouri on September 2, 1945.
In Allied countries during the war, it was not usually distinguished from the Second World War in general, or was known simply as the War with Japan. In the US, the term Pacific Theater was widely used, although technically this did not cover the China or Southeast Asia theaters. These regions were covered under the CBI Theater of Operations.