The Empire of Japan, also referred to as the Japanese Empire, Imperial Japan, or simply Japan, was the Japanese nation-state that existed from the Meiji Restoration in 1868 until the enactment of the reformed Constitution of Japan in 1947. From 29 August 1910 until 2 September 1945, it administered the naichi and the gaichi. The South Seas Mandate was a single Japanese dependent territory in the name of the League of Nations under Japanese administration. In the closing stages of World War II, with Japan defeated alongside the rest of the Axis, the formalized Japanese Instrument of Surrender was issued in compliance with the Potsdam Declaration of the victorious Allies, and Japanese de facto territory subsequently shrunk to cover only the Japanese archipelago as it is today.
The Greater East Asia Co-Prosperity Sphere, also known as the GEACPS, was a pan-Asian union that the Empire of Japan tried to establish. Initially, it covered Japan, Manchukuo, and China, but as the Pacific War progressed, it also included territories in Southeast Asia. The term was first coined by Minister for Foreign Affairs Hachirō Arita on June 29, 1940.
The Pacific War, sometimes called the Asia–Pacific War, 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.
The South-East Asian Theatre of World War II consisted of the campaigns of the Pacific War in the Philippines, Thailand, Indonesia, Indochina, Burma, India, Malaya and Singapore between 1941 and 1945.
Almost every country in the world participated in World War II. Most were neutral at the beginning, but only a relative few nations remained neutral to the end. The Second World War pitted two alliances against each other, the Axis powers and the Allied powers; the Soviet Union mobilised 34 million men and women, Germany 18 million, the U.S 16 million, Japan 9 million, and Great Britain 6 million. It is estimated that in total, 126 million people were mobilised during the war. It is generally estimated that a total of 72 million people died, with the lowest estimate being 40 million dead and the highest estimate being 90 million dead. The leading Axis powers were Nazi Germany, the Empire of Japan and the Kingdom of Italy; while the British Empire, the United States, the Soviet Union and China were the "Big Four" Allied powers.
The Allies, formally referred to as the United Nations from 1942, were an international military coalition formed during World War II (1939–1945) to oppose the Axis powers. Its principal members by the end of 1941 were the "Big Four" - United Kingdom, United States, Soviet Union, and China.
The Commonwealth of the Philippines was attacked by the Empire of Japan on 8 December 1941, nine hours after the attack on Pearl Harbor. Although it was governed by a semi-independent commonwealth government, the United States of America controlled the Philippines at the time and possessed important military bases there. The combined Filipino-American army was defeated in the Battle of Bataan, which saw many war crimes commited and the Battle of Corregidor in April 1942, but guerrilla resistance against the Japanese continued throughout the war. Uncaptured Filipino army units, a communist insurgency, and supporting American agents all played a role in the resistance. Due to the huge number of islands, the Japanese never occupied many of the smaller and more minor islands. The Japanese control over the countryside and smaller towns were often tenuous at best.
Malaya, then under British administration, was gradually occupied by Japanese forces between 8 December 1941 and the Allied surrender at Singapore on 15 February 1942. The Japanese remained in occupation until their surrender to the Allies in 1945. The first Japanese garrison in Malaya to lay down their arms was in Penang on 2 September 1945 aboard HMS Nelson.
The Battle of Dutch Harbor took place on 3-4 June 1942, when the Imperial Japanese Navy launched two aircraft carrier raids on the Dutch Harbor Naval Operating Base and U.S. Army Fort Mears at Dutch Harbor on Amaknak Island, opening the Aleutian Islands campaign of World War II. The bombing marked the first aerial attack by an enemy on the continental United States and was the second time in history that the continental U.S. was bombed by someone working for a foreign power, the first being the accidental bombing of Naco, Arizona, in 1929.
Days of Infamy is a two-novel alternate history of the initial stages of the Pacific War by Harry Turtledove.
The Japanese occupation of Kiska took place between 6 June 1942 and 28 July 1943 during the Aleutian Islands campaign of the American Theater and the Pacific Theater of World War II. The Japanese occupied Kiska and nearby Attu Island in order to protect the northern flank of the Japanese Empire.
When the United Kingdom declared war on Nazi Germany in September 1939 at the start of World War II, it controlled to varying degrees numerous crown colonies, protectorates, and India. It also maintained unique political ties to four of the five independent Dominions—Australia, Canada, South Africa, and New Zealand—as co-members of the then "British Commonwealth". In 1939 the British Empire and the Commonwealth together comprised a global power, with direct or de facto political and economic control of 25% of the world's population, and of 30% of its land mass.
The decolonisation of Asia was the gradual growth of independence movements in Asia, leading ultimately to the retreat of foreign powers and the creation of several nation-states in the region.
The territorial conquests of the Empire of Japan in the Western Pacific Ocean and East Asia began in 1895 with its victory over Qing China in the First Sino-Japanese War. Subsequent victories over the Russian Empire and German Empire expanded Japanese rule to Taiwan, Korea, Micronesia, southern Sakhalin, several concessions in China, and the South Manchuria Railway. In 1931, Japan invaded Manchuria, resulting in the establishment of the puppet state of Manchukuo the following year; thereafter, Japan adopted a policy of founding and supporting puppet states in conquered regions. These conquered territories became the basis for the Greater East Asia Co-Prosperity Sphere in 1940.
The Japanese occupation of Attu was the result of an invasion of the Aleutian Islands in Alaska during World War II. Imperial Japanese Army troops landed on 7 June 1942, the day after the invasion of nearby Kiska. Along with the Kiska landing, it was the first time that the continental United States was invaded and occupied by a foreign power since the War of 1812, and was the second of the only two invasions of the United States during World War II. The occupation ended with the Allied victory in the Battle of Attu on 30 May 1943.
The United States has been physically invaded on several occasions: once during the War of 1812; once during the Mexican–American War; several times during the Mexican Border War; and three times during World War II, two of which were air attacks on American soil. During the Cold War, most of the US military's strategy was geared towards repelling an attack against NATO allies in Europe by the Warsaw Pact.
The Imperial Japanese Armed Forces (IJAF) were the unified forces of the Japanese Empire. Formed during the Meiji Restoration in 1868, they were disbanded in 1945, shortly after Japan's defeat to the Allies of World War II; the revised Constitution of Japan, drafted during the Allied occupation of Japan, replaced the IJAF with the present-day Japan Self-Defense Forces.
The history of Japanese foreign relations deals with the international relations in terms of diplomacy, economics and political affairs from about 1850 to 2000. The kingdom was virtually isolated before the 1850s, with limited contacts through Dutch traders. The Meiji Restoration was a political revolution that installed a new leadership that was eager to borrow Western technology and organization. The government in Tokyo carefully monitored and controlled outside interactions. Japanese delegations to Europe brought back European standards which were widely imposed across the government and the economy. Trade flourished, as Japan rapidly industrialized.
Japan during World War II refers to the history of the Empire of Japan during World War II. This includes the invasion of the Republic of China, the annexation of French Indochina and the subsequent invasion of British India, the Pacific War and the surrender of Japan.
