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  1. World War II: Summary, Combatants & Facts | HISTORY

    Oct 29, 2009 · World War II, the largest and deadliest conflict in human history, involved more than 50 nations and was fought on land, sea and air in nearly every part of the world.

  2. World War II: Causes and Timeline - HISTORY

    Sparked by the 1939 Nazi invasion of Poland, World War II pitted the Allied forces (led by the United States, Great Britain and the U.S.S.R.) against the Axis powers (Nazi Germany, Japan …

  3. World War II Battles: Timeline - HISTORY

    May 5, 2021 · With Adolf Hitler leading a German invasion of Poland in 1939, World War II was launched, a deadly global conflict waged across Europe and the Pacific until 1945.

  4. How Did World War II End? - HISTORY

    Aug 11, 2020 · How Did World War II End? Explore five defining events that led to the conclusion of World War II on September 2, 1945.

  5. The Pictures that Defined World War II - HISTORY

    Jul 6, 2018 · With over 30 countries involved in World War II and the loss of over 50 million lives, war photography captured the destruction and victories of the deadliest war in history.

  6. Battle of the Bulge - Definition, Dates & Who Won - HISTORY

    Oct 14, 2009 · Called “the greatest American battle of the war” by Winston Churchill, the Battle of the Bulge in the Ardennes region of Belgium was Adolf Hitler’s last major offensive in World …

  7. Articles | HISTORY

    History from countries and communities across the globe, including the world’s major wars.

  8. Watch WWII in HD Full Episodes, Video & More - HISTORY

    This visually astonishing landmark series presents the story of World War II through the eyes of 12 Americans who experienced the war firsthand.

  9. How Superman Mobilized the WWII Home Front - HISTORY

    Jul 8, 2025 · In September 1939, both Great Britain and France would declare war on Germany, marking the official start of World War II.

  10. Hiroshima, Then Nagasaki: Why the US Deployed the Second A …

    Jul 21, 2020 · Ever since America dropped a second atomic bomb on Nagasaki, Japan on August 9, 1945, the question has persisted: Was that magnitude of death and destruction really …