It was formed on August 10, 1949. That's 62 years ago at the time I'm answering this question. - 03/22/2012
1789
1789
The Department of Defense is often referred to as The DOD.
What is now called the Department of Defense was originally named the Department of War.
The US Department of Defense was originally called the US War Department.
1789
1947
1789
Harry S Truman
In the US Defense Department laboratory.
Department of Defense
1966
1,19131913196617891997cool200617891789
1997
In 2002
1997
2006