How did computers help the United States in World War II?

It helped to break the Enigma Code and win the war.

Explanation:

It used paper tape input and used vacuum tubes.

Electronics rose to prominence quickly in World War II. The British developed and progressed electronic computers which were primarily used for breaking the "Enigma" codes, which were Nazi secret codes. ... Americans also used electronic computers for equations, such as battlefield equations, ballistics, and more.

Explanation:

battle of saint-mihiel, (12–16 september 1918), allied victory and the first u.s.-led offensive in world war i. the allied attack against the saint-mihiel salient provided the americans with an opportunity to use their forces on the western front en masse.

explanation:

the roman empire began to fall