A ballistic floor blanket is adapted for use in a military vehicle. The floor blanket includes top and bottom assembly covers, and an interior ballistic fabric composite intermediate the top and bottom assembly covers. The fabric composite incorporates a plurality of overlying structural ballistic layers. The ballistic layers include high-performance fibers having a tensile strength greater than about 2000 MPa and an elastic modulus greater than about 60 GPa. A retention assembly having a plurality of peripherally spaced floor anchors is adapted for attaching the floor blanket to the military vehicle.