U.S. Department of Defense (DOD)
"The mission of the Department of Defense is to provide the military forces needed to deter war and to protect the security of our country." (DOD website)
U.S. Department of State
"The State Department's mission is to shape and sustain a peaceful, prosperous, just, and democratic world and foster conditions for stability and progress for the benefit of the American people and people everywhere." (State Dept. website)