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Before World War II, the United States followed a policy of isolationism, avoiding major conflicts overseas. But after the attack on Pearl Harbor in 1941, everything changed.

The U.S. mobilized its massive industrial base, producing tanks, planes, and ships at an unprecedented scale. American troops fought across Europe and the Pacific, while scientists developed the atomic bomb, the deadliest weapon in history.

By the end of the war in 1945, the U.S. emerged not only as a victor but also as the dominant global superpower. It shaped the United Nations, led the Western alliance, and entered the Cold War against the Soviet Union.

World War II transformed America from an isolated nation into the leader of the free world — a position it still holds today.

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🔎 Sources:

David Kennedy, Freedom from Fear: The American People in Depression and War

BBC History: America and WWII

National WWII Museum

#WWII #PearlHarbor #japanese #America #WW2History #MilitaryHistory #Shorts