In March, the Israeli system — known as “Trophy” or “Windbreaker,” and seen in the cheesy video below — was used in combat for the first time. shooting down a missile before it could hit a Merkava 4 tank along the Gaza border.The U.S. military, meanwhile, appears to be in the late stages of combining two active protection systems into a single defense for armored vehicles in Afghanistan. Crosshairs is a series of radars and microphones just far enough apart to triangulate the distance and direction of incoming grenades, mortars, and bullets.