With our military units tracing their roots to pre-Revolutionary times, you might say that we are America’s oldest company. And if you look at us in business terms, many would say we are not only America’s largest company, but its busiest and most successful.

The Army, Navy, and Marine Corps were established in 1775, in concurrence with the American Revolution. The War Department was established in 1789, and was the precursor to what is now the Department of Defense.

The U.S. Air Force was also created, along with a new Department of the Air Force. The War Department was converted to the Department of the Army.   More detail...