French Indochina in World War II in the context of "Comintern"

The Pacific War, sometimes called the Asia–Pacific War or the Pacific Theater, was the theater of World War II fought between the Japan and the Allies in East and Southeast Asia, the Pacific and Indian Oceans, and Oceania. It was geographically the largest theater of the war, including the Pacific Ocean theater, the South West Pacific theater, the Second Sino-Japanese War, and the brief Soviet–Japanese War, and included some of the largest naval battles in history. War between Japan and the Republic of China had begun in 1937, with hostilities dating back to Japan's invasion of Manchuria in 1931, but the Pacific War is more widely accepted to have begun in 1941, when the United States and United Kingdom were brought into the war, after being attacked by Japan.

Japan invaded French Indochina in 1940, and extended its control over the entire territory in July 1941. On 7–8 December 1941, Japan attacked the American naval base at Pearl Harbor in Hawaii; the U.S.-held Philippines, Guam, and Wake Island; and the British colonies of Malaya, Singapore, and Hong Kong, followed by a Japanese declaration of war. The Japanese achieved great success over the next 6 months, allying with Thailand and capturing the listed territories (except for Hawaii) in addition to Borneo, New Britain, the Dutch East Indies, Burma, the Solomon and Gilbert Islands, and parts of New Guinea. In May 1942, Japanese and Allied aircraft carriers fought at the Battle of Coral Sea, resulting in the retreat of a Japanese invasion force headed for Port Moresby. In June, Japan invaded the Aleutian Islands, and in the central Pacific was defeated at the Battle of Midway, considered a key turning point in the war. After this point, the Japanese experienced great difficulty replacing their losses in ships and aircraft as the U.S. produced ever increasing numbers of both.

The Japanese occupation of Cambodia (Khmer: ការត្រួតត្រារបស់ជប៉ុននៅកម្ពុជា) was the period of Cambodian history during World War II when the Kingdom of Cambodia was occupied by the Japanese. Vichy France, which was a client state of Germany, nominally maintained the French protectorate over Cambodia and other parts of Indochina during most of the Japanese occupation. This territory of Cambodia was reduced, by concessions to Thailand after the Franco-Thai War, so that it did not include Stung Treng Province, Battambang Province, and Siem Reap Province.

The Japanese occupation in Cambodia lasted from 1941 to 1945 and, in general, the Cambodian population escaped the brutalities inflicted on civilians by the Japanese occupiers in other countries of Southeast Asia. After the nominal French Indochina colonial government was overthrown in 1945, Cambodia became a pro-Tokyo puppet state until the surrender of Japan.

North Vietnam, officially the Democratic Republic of Vietnam (DRV; Vietnamese: Việt Nam Dân chủ Cộng hòa, (Vietnamese pronunciation: [vîəˀt nāːm zʌ̄n cû kôŋ͡mˀ hwàː]; VNDCCH), was a country in Southeast Asia from 1945 to 1976, with sovereignty recognized in 1954. A member of the communist Eastern Bloc, it opposed the French-supported State of Vietnam and later the Western-allied Republic of Vietnam (South Vietnam). North Vietnam launched a successful military offensive against South Vietnam in 1975 and ceased to exist the following year when it merged with the South to become the contemporary Socialist Republic of Vietnam.

During the August Revolution following World War II, Vietnamese communist revolutionary Hồ Chí Minh, leader of the Việt Minh Front, declared independence on 2 September 1945 and proclaimed the creation of the Democratic Republic of Vietnam. The communist-led Viet Minh, cloaked in nationalism, was designed to appeal to a wider population than the Indochinese Communist Party could command.

South Vietnam, officially the Republic of Vietnam (RVN; Vietnamese: Việt Nam Cộng hòa, VNCH), was a country in Southeast Asia that existed from 1955 to 1975. It first garnered international recognition in 1949 as the associated State of Vietnam within the French Union, with its capital at Saigon. Since 1950, it was a member of the Western Bloc during the Cold War. Following the 1954 partition of Vietnam, it became known as South Vietnam and was established as a republic in 1955. Its sovereignty was recognized by the United States and 87 other nations, though it failed to gain admission into the United Nations as a result of a Soviet veto in 1957. It was succeeded by the Republic of South Vietnam in 1975. In 1976, the Republic of South Vietnam and North Vietnam merged to form the Socialist Republic of Vietnam.

The aftermath of World War II saw the communist-led Viet Minh, under Ho Chi Minh, seize power and proclaim the Democratic Republic of Vietnam (DRV) in Hanoi in September 1945, initiating civil conflicts. In 1949, during the First Indochina War, the French and anti-communist nationalists established the State of Vietnam (SVN), led by former emperor Bảo Đại. Returning from exile in June 1954, Ngo Dinh Diem, recognized as the prominent anti-communist and anti-colonialist figure, was appointed prime minister of the SVN.

North Vietnam, officially the Democratic Republic of Vietnam (DRV; Vietnamese: Việt Nam Dân chủ Cộng hòa (Vietnamese pronunciation: [vîəˀt nāːm zʌ̄n cû kôŋ͡mˀ hwàː]); VNDCCH), was a country in Southeast Asia from 1945 to 1976, with sovereignty recognized in 1954. A member of the communist Eastern Bloc, it opposed the French-supported State of Vietnam and later the Western-allied Republic of Vietnam (South Vietnam). North Vietnam launched a successful military offensive against South Vietnam in 1975 and ceased to exist the following year when it merged with the South to become the contemporary Socialist Republic of Vietnam.

During the August Revolution following World War II, Vietnamese communist revolutionary Hồ Chí Minh, leader of the Việt Minh Front, declared independence on 2 September 1945 and proclaimed the creation of the Democratic Republic of Vietnam. The communist-led Viet Minh, cloaked in nationalism, was designed to appeal to a wider population than the Indochinese Communist Party could command.

The bombing of Singapore was an attack on 8 December 1941 by seventeen G3M Nell bombers of Mihoro Air Group (Mihoro Kaigun Kōkūtai), Imperial Japanese Navy, flying from Thu Dau Mot in southern Indochina. The attack began at around 0430, shortly after Japanese forces landed on Kota Bharu, Kelantan in northern Malaya. It was the first knowledge the Singapore population had that war had broken out in the Far East.

The Pacific War, sometimes called the Asia–Pacific War or the Pacific Theater, was the theater of World War II fought between Japan and the Allies in East and Southeast Asia, the Pacific and Indian Oceans, and Oceania. It was geographically the largest theater of the war, including the Pacific Ocean theater, the South West Pacific theater, the Second Sino-Japanese War, and the brief Soviet–Japanese War, and included some of the largest naval battles in history. War between Japan and the Republic of China had begun in 1937, with hostilities dating back to Japan's invasion of Manchuria in 1931, but the Pacific War is more widely accepted to have begun in 1941, when the United States and United Kingdom were brought into the war, after being attacked by Japan.

Japan invaded French Indochina in 1940, and extended its control over the entire territory in July 1941. On 7–8 December 1941, Japan attacked the American naval base at Pearl Harbor in Hawaii; the U.S.-held Philippines, Guam, and Wake Island; and the British colonies of Malaya, Singapore, and Hong Kong, followed by a Japanese declaration of war. The Japanese achieved great success over the next 6 months, allying with Thailand and capturing the listed territories (except for Hawaii) in addition to Borneo, New Britain, the Dutch East Indies, Burma, the Solomon and Gilbert Islands, and parts of New Guinea. In May 1942, Japanese and Allied aircraft carriers fought at the Battle of Coral Sea, resulting in the retreat of a Japanese invasion force headed for Port Moresby. In June, Japan invaded the Aleutian Islands, and in the central Pacific was defeated at the Battle of Midway, considered a key turning point in the war. After this point, the Japanese experienced great difficulty replacing their losses in ships and aircraft as the U.S. produced ever increasing numbers of both.