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  1. World War II: Causes, Timeline, Key Battles, Facts & Legacy

    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 · World War II ended six years and one day after Germany’s invasion of Poland on September 1, 1939, sparked the 20th century’s second global conflict.

  5. 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.

  6. Watch WW2 From Space | HISTORY Channel

    About This spectacular two-hour special delivers the tipping points of World War II as you’ve never seen them before.

  7. American Women in World War II - HISTORY

    Mar 5, 2010 · Some 350,000 women served in the U.S. Armed Forces in World War II, both at home and abroad.

  8. How Germany’s Invasion of Poland Kicked Off WWII - HISTORY

    Sep 1, 2014 · How Germany’s Invasion of Poland Kicked Off WWII The Nazi offensive began with a bang—many of them—and led to a global conflict that would span six years.

  9. Italian Campaign - WWII, Timeline & Outcome - HISTORY

    Nov 18, 2009 · In the final push to defeat the Axis powers of Italy and Germany during World War II (1939-45), the U.S. and Great Britain, the leading Allied powers, planned to invade Italy.

  10. Japan surrenders, bringing an end to WWII - HISTORY

    Feb 9, 2010 · Japan formally surrenders to the Allies aboard the USS Missouri, bringing an end to World War II.