See estimates for worldwide deaths, broken down by country, in World War II. 

The Allied invasion of Western Europe was code named Operation Overlord. It required years of planning, training, and supplying by the United States and Great Britain, and was one of the most heavily guarded secrets of the war. 

See a breakdown of numbers in the US military, by branch and year, in World War II. 

On September 16, 1940, the United States instituted the Selective Training and Service Act of 1940, which required all men between the ages of 21 and 45 to register for the draft.

The GI Bill: Soldiers Return Home With memories of 1932’s Bonus March, in which veterans of World War I marched on W...

In the late 1930s, the U.S. military began developing small boats that could carry troops from ships to open beaches.

Fought between the U.S. and Japanese navies June 4-7, 1942, this battle turned the tide of the war in the Pacific in favor of the Americans.

With ever-growing orders for war materials combined with so many men overseas fighting the war, women were called upon to work in ways previously reserved only for men.

Ask anyone who remembers life on the Home Front during World War II about their strongest memories and chances are they will tell you about rationing. You see, the war caused shortages of all sorts of things: rubber, metal, clothing, etc. But it was the shortages of various types of food that affected just about everyone on a daily basis.

America's isolation from war ended on December 7, 1941, when Japan staged a surprise attack on American military installations in the Pacific. 

American women played important roles during World War II, both at home and in uniform.