An Army officer then used his belt to make a tourniquet on Munley's leg.
The tourniquet on the left leg went just above the knee, below which there was nothing but torn flesh and a length of bare bone.
A bystander had placed a belt on his arm to act as a tourniquet.
tourniquet tour·ni·quet (tur'nĭ-kĭt, tûr'-)
A device, typically a tightly encircling bandage, used to check bleeding by temporarily stopping the flow of blood through a large artery in a limb.