This report examines the current role of facilities planning in force protection. It concentrates on a specific planning technique, Defensible Space, also called Crime Prevention Through Environmental Design (CPTED), as a method that planners and facilities Crime Prevention Through Environmental personnel can use to contribute to the force protection of a facility (Jefferey, 1977, Crowe, 1991). The following four areas are included: (1) An examination of CPTED, it's potential use in Force Protection, and the development of guidelines for it's future use. (2) An examination of significant acts of terrorism to see if and how CPTED guidelines could have been applied to increase target security. (3) Examples of how CPTED guidelines were applied to improve Force Protection at Joint Interagency Task Force - East (JIATF-EAST). (4) A review of current Navy policy on Force Protection and the role of planning in that policy.