Below: The famous P 51 Mustang fighter airplane. Designed
and built in record time as World War II began in Europe, it saw
service fighting in both Europe and the Pacific.
Aircraft carriers like the USS Hornet (below) brought about a complete
change in fighting strategy at sea during World War II. Even the largest enemy
battleships could be sunk by airplanes launched from the decks of carriers.
Below: A full scale replica of the atomic bomb dropped on Hiroshima, Japan, in 1945.
President Truman believed the bomb saved hundreds of thousands of lives,
both American and Japanese, by ending the war quickly.
Below: Liberty Ships played a vital role in World War II.
These were cargo ships, designed to be assembled quickly even by
workers with limited shipbuilding experience. Over 2,500
were built, and helped move millions of tons of weapons
and supplies across the Atlantic Ocean.
All photos except the atomic bomb photo are from the Library of Congress.
The photo of the atomic bomb is from Wikipedia and the National Archives.
Some have been edited or resized for this page.