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World War II or the Second World War, often abbreviated as WWII or WW2, was a global war. It involved the vast majority of the world's countries
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The Invasion of Poland, also known as the September campaign, 1939 defensive war, and Poland campaign, was an attack on the Second Polish Republic by Nazi Germany and the Soviet Union which marked the beginning of World War II.
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The Battle of France, aka 'the Fall of France', was the German invasion of France, Belgium, Luxembourg, and the Netherlands during the Second World War. On 3 September 1939, France had declared war on Germany, following the German invasion of Poland.
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The Battle of Britain was a military campaign of the Second World War, in which the Royal Air Force and the Fleet Air Arm of the Royal Navy defended the United Kingdom against large-scale attacks by Nazi Germany's air force.
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The Lend-Lease policy aka An Act to Promote the Defense of the United States was a program under which the United States supplied the United Kingdom, France, China, and later the Soviet Union and other Allied nations with food, oil, and materiel between March 1941 and August 1945.
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The Attack on Pearl Harbor was a surprise military attack by the Japanese Army upon the US against the naval base at Pearl Harbor in Honolulu, Territory of Hawaii, just before 08:00, on Sunday morning.
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The Battle of Midway was a major battle in the Pacific Theater of WWII that took place in Midway Atoll.
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In the Battle of Stalingrad, Germany and its allies fought the Soviet Union for control of the city of Stalingrad in Southern Russia.
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The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as D-Day, it was the largest seaborne invasion in history.
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Victory in Europe Day is the day celebrating Germany's surrender of its armed forces on Tuesday, 8 May 1945, marking the end of World War II in Europe.
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The United States threw two nuclear weapons over the Japanese cities of Hiroshima and Nagasaki on August 6 and 9, 1945, respectively. The two bombings killed between 129,000 and 226,000 people, most of whom were civilians, and remain the only use of nuclear weapons in armed conflict.
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Truman announced Japan's surrender and the end of World War II. The news spread quickly and celebrations erupted across the United States. On September 2, 1945, formal surrender documents were signed aboard the USS Missouri, designating the day as the official Victory over Japan Day.