Soviet and Polish forces liberate Warsaw during World War II.
About 85% of the city was destroyed at that point.
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The US Air Force accidentally bombed the Belgian town of Mortsel.
Tehran Conference begins.
The last major battle of WWII took place.
President Franklin D. Roosevelt signed a 48-hour working week order to increase production during World War II.
The United States Air Force firebombed Tokyo, Japan, killing over 100,000 civilians.
