In 2002, there were 3,511 active-duty military personnel and 1,187 civilian personnel stationed in Montana. The principal military facility in Montana is Malmstrom Air Force Base (Great Falls), a Strategic Air Command facility. Total defense contracts in 2001 amounted to $127.4 million.
An estimated 108,476 veterans of US military service were living in Montana in 2000. Of these, 20,413 served in World War II; 12,885 in the Korean conflict; 34,199 during the Vietnam era; and 11,602 during 1990–2000 (including the Persian Gulf War). In 1999, expenditures on veterans totaled $216 million.
In 2000, the Montana Highway Patrol employed 205 full-time sworn officers.