Pacific War
The Pacific War, sometimes called the Asia–Pacific War or the Pacific Theater,[43] was the theater of World War II that was fought in eastern Asia, the Pacific Ocean, the Indian Ocean, and Oceania. It was geographically the largest theater of the war, including the vast Pacific Ocean theater, the South West Pacific theater, the Second Sino-Japanese War, and the Soviet–Japanese War.
This article is about the Pacific theaters of World War II. For other uses, see Pacific War (disambiguation).
The Second Sino-Japanese War between the Empire of Japan and the Republic of China had been in progress since 7 July 1937, with hostilities dating back to 1931 with the Japanese invasion of Manchuria.[44] However, it is more widely accepted[f] that the Pacific War itself began on 7 December (8 December Japanese time) 1941, when the Japanese simultaneously attacked American military bases in Hawaii, Wake Island, Guam, and the Philippines and invaded Thailand and the British colonies of Malaya, Singapore, and Hong Kong.[45][46][47]
The Pacific War saw the Allies pitted against Japan, the latter aided by Thailand and to a lesser extent by the Axis powers, Germany and Italy. The Japanese achieved great success in the initial phase of the campaign, but were gradually driven back using an island hopping strategy. The Allies adopted a Europe first stance, giving first priority to defeating Nazi Germany, but still managed to bring to bear the vast industrial might of the United States. The Japanese had great difficulty replacing their losses in ships and aircraft, while American factories and shipyards produced ever increasing numbers of both. Fighting included some of the largest naval battles in history and massive Allied air raids over Japan, as well as the atomic bombings of Hiroshima and Nagasaki.
Japan surrendered unconditionally on 15 August 1945 and was occupied by the Allies. Japan lost its former possessions in Asia and the Pacific and had its sovereignty limited to the four main home islands and other minor islands as determined by the Allies.[48]
Japanese offensives in Asia, 1944[edit]
Japanese counteroffensives in China, 1944[edit]
In mid-1944 Japan mobilized over 500,000 men[151] and launched a massive operation across China under the code name Operation Ichi-Go, their largest offensive of World War II, with the goal of connecting Japanese-controlled territory in China and French Indochina and capturing airbases in southeastern China where American bombers were based.[152] Though Japan suffered about 100,000 casualties,[153] these attacks, the biggest in several years, gained much ground for Japan before Chinese forces stopped the incursions in Guangxi. Despite major tactical victories, the operation overall failed to provide Japan with any significant strategic gains. A great majority of the Chinese forces were able to retreat out of the area, and later come back to attack Japanese positions at the Battle of West Hunan. The constant defeats the Japanese suffered in the Pacific meant that Japan never got the time and resources needed to achieve final victory over China. Operation Ichi-go created a great sense of social confusion in the areas of China that it affected. Chinese Communist guerrillas were able to exploit this confusion to gain influence and control of greater areas of the countryside in the aftermath.[154]