tank destroyer
Military term for an armored fighting vehicle designed specifically to destroy enemy tanks.
Tank destroyers were widely used in World War II.
戦車 means 'tank' (the armored vehicle), while 対戦車車両 is a vehicle designed to destroy tanks.
対戦車兵器 is a broader term for anti-tank weapons, not limited to vehicles.
Compound of 対 (anti-), 戦車 (tank), and 車両 (vehicle). A straightforward modern military term.