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The first atomic bomb was created.
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The Americans landed on the Solomon Islands in the first battle that America was in of World War 2
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Allied soldiers stormed the beaches of France to begin the World War II invasion of Europe that would lead to the liberation of Paris.
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Two ships loading ammunition at Port Chicago Naval Weapons Station in California explode. The accident killed three hundred and twenty people.
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President Roosevelt dies. Vice President Harry S. Truman assumes the presidency and role as commander in chief of World War II.
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The unconditional surrender of Germany at Reims, France concludes the military engagements of World War II in Europe.
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President Harry S. Truman gives the go-ahead for the use of the atomic bomb with the bombing of Hiroshima. Three days later, the second bomb is dropped on Nagasaki, Japan. On August 15, Emperor Hirohito of Japan surrenders. -
The Soviet Union begins its land blockade of the Allied sectors of Berlin, Germany.
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the North American Treaty Organization, is formed by the United States, Canada, and ten Western European nations. The treaty stated that any attack against one nation would be considered an attack against them all.
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North Korea invades South Korea, South Korea gets aid from the United States.