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World War II Timeline | Key Battles, Turning Points and Events

This interactive World War II timeline highlights the battles, political decisions, fronts, and turning points that shaped the conflict from 1939 to 1945.

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Topics

  • World War II
  • battles
  • turning points
  • history

How to read this timeline

The conflict cannot be understood as one continuous advance from Poland to Berlin. Decisions made in Europe, North Africa, the Atlantic, and the Pacific changed the resources and choices available on every other front. Reading the milestones together makes it easier to see when a regional crisis became a global war and why several apparent victories produced new strategic problems.

This selection focuses on turning points rather than attempting to list every campaign or civilian experience. It places military events beside diplomatic decisions so that chronology does not become a catalogue of battles. The dates provide an overview for comparison; detailed research should also examine occupation, resistance, genocide, colonial troops, logistics, and the different national memories of the war.

Visualization method

The interactive version uses periods for long campaigns, individual events for decisive moments, and links to show consequences across fronts. Zooming from years to months reveals how Pearl Harbor, Midway, Stalingrad, and D-Day belong to connected but distinct sequences.

Key events

  1. Invasion of Poland 1939

    Germany invades Poland, leading Britain and France to declare war.

  2. Fall of France 1940

    The Blitzkrieg breaks through Western Europe and changes the balance of power.

  3. Operation Barbarossa 1941

    Germany opens a massive Eastern Front by invading the Soviet Union.

  4. Prelude to Pearl Harbor 1941

    Japanese moves in Indochina, U.S. sanctions, failed negotiations, the Hull Note, the Kido Butai sortie, and the December attack order push the Pacific crisis toward war.

  5. Pearl Harbor 1941

    The attack brings the United States into World War II.

  6. Midway 1942

    A major naval turning point in the Pacific theater.

  7. Stalingrad 1942-1943

    A decisive battle and symbol of resistance on the Eastern Front.

  8. D-Day 1944

    The Normandy landings open a major Western Front in Europe.

  9. End of the war 1945

    Berlin falls and Japan surrenders after Hiroshima, Nagasaki, and Soviet entry in Manchuria.