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- Even as World War II was ending 70 years ago, Americans already knew it had transformed their country. What they didn’t know was just how much or for how long. In that last wartime summer of 1945, the seeds of a new America had been sown.
www.usatoday.com/story/news/nation/2015/07/18/70-years-later-how-world-war-ii-changed-america/30334203/70 years later: How World War II changed America - USA TODAY
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- Overview
- The outbreak of war
World War II began in Europe on September 1, 1939, when Germany invaded Poland. Great Britain and France responded by declaring war on Germany on September 3. The war between the U.S.S.R. and Germany began on June 22, 1941, with Operation Barbarossa, the German invasion of the Soviet Union. The war in the Pacific began on December 7/8, 1941, when Japan attacked the American naval base at Pearl Harbor and other American, Dutch, and British military installations throughout Asia.
Read more below: Axis initiative and Allied reaction: The outbreak of war
Pacific War
Read more about the war in the Pacific.
What countries fought in World War II?
The main combatants were the Axis powers (Germany, Italy, and Japan) and the Allies (France, Great Britain, the United States, the Soviet Union, and, to a lesser extent, China).
By the early part of 1939 the German dictator Adolf Hitler had become determined to invade and occupy Poland. Poland, for its part, had guarantees of French and British military support should it be attacked by Germany. Hitler intended to invade Poland anyway, but first he had to neutralize the possibility that the Soviet Union would resist the invasion of its western neighbour. Secret negotiations led on August 23–24 to the signing of the German-Soviet Nonaggression Pact in Moscow. In a secret protocol of this pact, the Germans and the Soviets agreed that Poland should be divided between them, with the western third of the country going to Germany and the eastern two-thirds being taken over by the U.S.S.R.
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Pop Quiz: 17 Things to Know About World War II
Having achieved this cynical agreement, the other provisions of which stupefied Europe even without divulgence of the secret protocol, Hitler thought that Germany could attack Poland with no danger of Soviet or British intervention and gave orders for the invasion to start on August 26. News of the signing, on August 25, of a formal treaty of mutual assistance between Great Britain and Poland (to supersede a previous though temporary agreement) caused him to postpone the start of hostilities for a few days. He was still determined, however, to ignore the diplomatic efforts of the western powers to restrain him. Finally, at 12:40 pm on August 31, 1939, Hitler ordered hostilities against Poland to start at 4:45 the next morning. The invasion began as ordered. In response, Great Britain and France declared war on Germany on September 3, at 11:00 am and at 5:00 pm, respectively. World War II had begun.
Sep 12, 2019 · The real event that changed America into a nation actively at war was the Japanese attack on Pearl Harbor. This was precipitated in July 1939 when Franklin Roosevelt announced that the U.S. would no longer trade items such as gasoline and iron to Japan, which needed it for its war with China.
Oct 29, 2009 · The war began when Nazi Germany invaded Poland in 1939 and raged across the globe until 1945, when Japan surrendered to the United States after atomic bombs were dropped on Hiroshima and Nagasaki.
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Jul 15, 2013 · The Second World War was a defining event in Canadian history, transforming a quiet country on the fringes of global affairs into a critical player in the 20th century's most important struggle.
Sep 2, 2020 · The United States emerged from World War II with extraordinary advantages that ensured prosperity for decades: an intact, thriving industrial base; a population relatively unscarred by war; cheap energy; two-thirds of the world’s gold supply; great optimism.
After the atomic bomb was dropped on Hiroshima and Nagasaki, Japan surrendered on September 2, 1945, and the Second World War came to an end. The war cost the lives of more than 330,000 American soldiers.
