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.

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 and Italy).

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.

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.

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

Oct 29, 2009 · Japanese internment camps were established during World War II by President Franklin D. Roosevelt through his Executive Order 9066.

Jan 15, 2026 · When Denmark was occupied by Germany during World War II, the United States signed a pact with Denmark’s U.S. ambassador to protect Greenland—then a Danish colony—from Nazi …

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 War II ...

Sep 9, 2025 · When Brazil entered World War II—the only South American nation and one of just two Latin American countries to take up arms—it reshaped the balance of power in the South Atlantic.

Oct 29, 2009 · Germany’s invasion of Poland in 1939 led to the outbreak of World War II, and by 1941, Nazi forces had used “blitzkrieg” military tactics to occupy much of Europe.