In the year before the declaration of the war between the Axis and allies in 1939, confusion and continued turmoil included the people of the world. The Great Depression that occurred right after the First World War made most areas of the world unemployed and urgently needed relief. Nationalism rushed through Germany in accordance with the provisions of the Treaty of Versailles after the end of the First World War. Since the Japanese army invaded Manchuria in 1931, China and Japan were in a state of war. Germany, Italy and Japan began to invade and occupy several neighboring countries.
One of the most important moments of World War II Pacific National Monument, Arizona battleship home base, American history: the attack on Pearl Harbor and the subsequent entry into the Second World War . This memorial preserves and interprets the story of the Pacific War from the detention of Japanese Americans to the battle of the Aleutian Islands.
When Japan attacked Pearl Harbor in December 1941, the United States entered World War II and needed to fight two wars (the Atlantic Ocean and the Pacific Ocean) and needed to become a "democratic army" . Lend-Lease is in two front and armies of our allies. When military demands and industrial requirements collide, it is obvious that the lack of labor force requires the reuse of women's power, but it is larger than before. During the Second World War all four units of the Army, Navy, Marine Corps and Coast Guard all "had special components of women within 6 months in case of emergency."
After the unexpected attack on the Pearl Harbor by the Japanese army in 1941, the United States got into war. At the beginning of the war the Marines defended attacks similar to attacks across the Pacific Ocean. The Marines are the main force used by Allied forces in implementing the "Isle Jumping" strategy. Early development of the amphibious doctrine turned out to be very valuable in carrying out this strategy. During World War II, the Marines reached about 500,000 troops.