Crouch received his A.B. and M.A. in international relations at the University of Southern California and his Ph.D. in the USC Defense and Strategic Studies Program. Since August 1992 he has been a professor in the department of defense and strategic studies at Southwest Missouri State University. Crouch was special advisor to the assistant director for strategic programs of the Arms Control and Disarmament Agency, as well as advisor to the U.S. delegation to the nuclear and space arms talks for ACDA. He has served in the Senate as a legislative assistant to Senator Malcolm Wallop and was principal deputy assistant secretary of defense for international security policy from February 1990 to August 1992.
Two of his recent works are "The President and Nuclear Testing" (1982) in Global Affairs and "A National Missile Defense" (1993) in Comparative Strategy.