CIA, US Navy SEALS and US Army Special Forces all directly trace their existence back to the men of O.S.S. - men like Bill Donovan, William Fairbairn, Rex Applegate and Aaron Bank. Fairbairn & Applegate understood the utility of the wire garrote in certain circumstances over the knife, and they trained their students accordingly. Here is a video of US Rangers training in various garrotes and techniques.
Add this combat grade weapon to your rig.
Handles: 3" 6061 Aluminum - No Glare
Wire: 23" Razor/Bone Wire
Buy 2: $88/each