When America entered World War I, its air power was ranked 14th in the world.

From the B-9 in the 1930s to the first four-engine bomber, the B-17, air force played a fundamental role in the world's most important historical events.

As the second World War rages, America builds up its air power before being brought into the conflict; as early as 1939, President Roosevelt increases production of the military aircraft.

The naval aviation's most powerful weapon system, the Attack Carrier.

Following B-17 Fortresses as they begin their high altitude bombing missions of Nazi-occupied Europe.

In the battle at El Alamein. German generals, in a top secret strategy meeting, planned victory but met defeat.