Question

when did the world war 2 break out​

Answer 1

Answer:

The World War II broke out in 1939. and it ended in 1945.

WWI - 1914-1918

WWII - 1939-1945

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Answer 2

Answer:

On September 1, 1939, Hitler invaded Poland from the west.  Then two days later, France and Britain declared war on Germany.  And that began World War II. On September 17, Soviet troops invaded Poland from the east.