This reference material provides the readers guide in the application of survivability doctrine in combat. Survivability doctrine addresses when, where, and how fighting and protective battlefield positions are prepared for individual soldiers, troop units, vehicles, weapons, and equipment. This manual implements survivability tactics for all branches of the combined arms team.      Battlefield survival critically depends on the quality of protection afforded by the positions. The full spectrum of survivability encompasses planning and locating position sites, designing adequate overhead cover, analyzing terrain conditions and construction materials, selecting excavation methods, and countering the effects of direct and indirect fire weapons. All these doctrinal contexts are relevant in the Army’s security engagement.