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World War II Wiki
World War II Wiki

Japan is an island nation in East Asia and is located on the Pacific Ocean. Its capital is Tokyo, while other cities include Kyoto, Hiroshima and Nagasaki. Japan's national language is Japanese and the type of government during World War II was Imperial. The climate of the island nation of Japan is temperate and the entire country is composed of a little over 6,000 small and large islands. The main island, Honshu, is fairly mountainous, but has no jungles or rain forest type environments.[1] Nothing is closely similar to any other islands in the Pacific. The official currency of Japan was the yen and the military had its own yen given to service members.

During WWII, Japan managed to establish a far reaching empire across much of Asia and the Pacific. Called the "Greater East Asia Co-Prosperity Sphere", the Empire lasted until September 1945, when Japan was forced to surrender to the Allies.

Prewar History[]

In 1931, the Japanese military fabricated the Mukden Incident in order to launch an invasion of Manchuria (a section of north China).[2] Over the following years, the Japanese military gradually chipped away at Chinese lands, the people of which were already embroiled in a devastating civil war between the Nationalist forces of Chiang Kai Shek and the Communists under Mao Zedong. The series of battles fought during the Japanese conquest of China sparked the Second Sino-Japanese war, which began with a fully fledged invasion in 1937.


The war flag of Japan

In addition to their conflicts with the Chinese, Imperial Japan was also involved in confrontations with the Soviet Union in a series of border clashes that would come to be known as the Soviet-Japanese Border Conflicts. During these events, the Japanese military (largely consisting of the Kwangtung Army) fought back and forth against the Soviets until a treaty was signed in 1939, followed by a neutrality pact that gave Japan access to areas of Mongolia.

World War II[]

On the 27 of September, 1940, the Empire of Japan signed the Tripartite Agreement with Nazi Germany and Italy, thus making them a part of the Axis alliance. Following this agreement, Japan went on to launch a series of invasions against multiple areas of the Asian continent and the Pacific.

Pearl Harbor Bombing and US entry into war[]

On December 7, 1941, the Japanese Navy launched a surprise attack against the US Navy base at Pearl Harbor, Hawaii. Following the devastating consequences of the attack, the United States declared itself at war with Japan, and in doing so became involved in the Second World War.

Japanese empire1942

The extent of the Japanese Empire by 1942.[3]

By 1942, the Japanese Empire had stretched to incorporate many former American possessions in the Pacific. Invasions of the Philippine Islands proved a disastrous loss for the US, with hundreds being taken prisoner and forced to endure a gruelling forced march known as the Bataan Death March. In addition to seizing American territorial possessions, the Japanese also attacked and captured the British island of Singapore on February 15. The Japanese also took over Dutch possessions in Indonesia and signed an alliance with the Kingdom of Thailand after having invading it's territory, effectively forcing the Thai to become Axis collaborators.

Although the juggernaut of Japanese expansion seemed to be on an endless path across the continent, the tide was very quickly turned following a series of disastrous naval battles that began with the Battle of Midway. During this confrontation, a crucial portion of the Japanese Combined Fleet was destroyed, and as such was considered by many to be the turning point in the Pacific War.

Later Defeats[]

The Japanese also began to experience serious defeats on land by late 1942. The Americans succeeded in taking Guadalcanal, and an attempted period of control over New Guinea was halted by primarily Allied forces.

Greater eastasia conference

The leaders of Japan and it's allies during the Greater East Asia Conference.[4]

Between 1943 and 1944, the Japanese began to see a serious reduction in territory across the Pacific. With their naval power continuing to weaken, the Empire found itself taking more and more of a defensive stance as the months wore on. However, in much of southeast Asia the Imperial conquest was still meeting success. Japanese claims in Burma, Malaysia, and Indochina remained protected from Allied counterattacks, and would provide Japan with the source of much of its economic and agricultural gains.

Beginning in October 1944 the United States launched its assault to retake the Philippines. Although the occupying forces fought bitterly to maintain their control in the region, the tide was soon turned in favor of the Allies. Even after the declared American victory, small pockets of Japanese resistance continued to remain on the islands, resulting in the battle being continued almost directly up to the end of the war.

With their famed "island hopping" strategy looking to win a decisive victory over the Japanese, the Allies began to draw up plans for a prospective invasion of the Japanese home islands. On February 19, 1945, the US Navy and Marines launched an attack on the small volcanic island of Iwo Jima. The defenders, which were now fighting firmly on their home soil, put up a stoic resistance in the face of the invaders, with many choosing to commit suicide rather than witness their land fall to the invaders. It is recorded that by the battle's conclusion, only 216 of the original 22,060 personnel defending the island were taken prisoner.[5]

With the first patch of Japanese home territory now within their hands, the Allies looked to establish other island bases close to Japan from which to launch aerial assaults on the nation. During the later stages of the war, Japanese cities were subjected to intense bombing raids by enemy airpower, during which thousands of civilians were killed.[6]

End of the war and the Atomic Bomb[]

Although the fall of a second critical position in the Japanese lines of defense (Okinawa) looked to be the last effort before the invasion of greater Japan, the Allied command was reluctant to issue the go-ahead for the attack as it was estimated that some 1 to 1.5 million Americans could die in the invasion not to mention many million Japanese. Many among them knew that the Japanese people had long been prepared to fight to the death and that in addition to regular military they would also be fighting much of Japan's civilian population. Due to these threats the allies decided to look for another way.

On August 6, 1945, "Little Boy", a 9,700 pound atomic bomb, was dropped on the Japanese city of Hiroshima. Only a few days later, on August 9, "Fat Man" (a second atomic bomb) exploded onto Nagasaki. The effects of the explosions and ensuing radiation were so devastating that the Japanese government was forced to finally come to the negotiating table. On September 2, the Empire of Japan officially surrendered to the Allies, thus ending the Second World War and marking the last moments of the once massive empire.

The use of the Atomic weapons would become a controversial issue due to Japan's already weak state. Many think that Japan was already so weakened from large scale sinking of its merchant fleet, low supplies, allied air bombing runs, threat of invasion by the soviets from the North and other factors could have lead to a surrender in a conventional fashion. After the war however Japan would become an important U.S ally and become a prospering nation after rebuilding.


Armed Forces[]

Imperial Japanese Army[]

Imperial Japanese Army Air Force[]

Imperial Japanese Navy[]

Special Naval Landing Force (Marines)[]

Imperial Japanese Naval Air Force[]