Definition: A cabinet department in the Executive Branch of the United States Government whose mission is to provide the military forces needed to deter war and to protect the security of our country.
add UNITED STATES; research support by this agency is checked as RESEARCH SUPPORT, U.S. GOV'T, NON-P.H.S.; CATALOG: use NAF entry
Other names United States Dept. of Defense; Department of Defense (U.S.)
