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 …

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 · 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.

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

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.

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

Aug 5, 2020 · After World War II officially ended on September 2, 1945, Black soldiers returned home to the United States facing violent white mobs of those who resented African Americans …

Sep 6, 2017 · The atomic bomb and nuclear bombs are powerful weapons that use nuclear reactions as their source of explosive energy. Scientists first developed nuclear weapons …

Oct 29, 2009 · On December 7, 1941, the U.S. naval base Pearl Harbor was the scene of a devastating surprise attack by Japanese forces that would push the U.S. into entering WWII.