Definition that contains line of defense
- abatis a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy
- trip wire a small military force that serves as a first line of defense; if they become engaged in hostilities it will trigger the intervention of stronger military forces
- abattis a line of defense consisting of a barrier of felled or live trees with branches (sharpened or with barbed wire entwined) pointed toward the enemy