Submarine, a submarine on the surface of the oceanSubmarine, a submarine on the surface of the ocean
Anti-tank system - self-propelled anti-aircraft missile systemAnti-tank system - self-propelled anti-aircraft missile system
Two anti-aircraft missile guns are aimed at each otherTwo anti-aircraft missile guns are aimed at each other
A picture of a 57mm anti-tank gun on the battlefieldA picture of a 57mm anti-tank gun on the battlefield