Tail-End Charlie: Brigand terminology for the last man in an operation--e. G., the final guy getting off a vehicle, jumping from an aircraft, rear guard on a patrol, etc.
Taliban: Militant, anti-Western Muslims with extreme religious views; in serious conflict with Shiites
TDy: Temporary Duty
Three-Shop: Operations and Training Section of the staff
TO: Table of Organization
TOA: Table of Allowances
TO&E: Table of Organization and Equipment
Two-Shop: Intelligence Section of the staff
U. K.: United Kingdom (England, Wales, Scotland, and Northern Ireland)
UN: United Nations
Unass: To jump out of or off something
UNREO: United Nations Relief and Education Organization
USAF: U. S. Air Force
USASFC: U. S. Army Special Forces Command
USSR: Union of Soviet Socialist Republics-Russia and neighboring countries before the fall of communism there
VTOL: Vertical Takeoff and Landing
WARNO: Warning Order; an informal alert, written or oral, that informs personnel of an upcoming operation or activity
Watch Bill: A list of personnel and stations for the watch
Watch-and-watch: A watch bill that requires personnel to be off only one watch before going back on again; used as a punishment or when a shortage of personnel requires such scheduling; AKA heel-and-toe
Waypoint: A location programmed into navigational instrumentation that directs aircraft, vehicles, and/or vessels to a specific spot on the planet
Whaler Boat: Small craft loosely based on the types of boats used in whaling; they are generally carried aboard naval and merchant vessels and are diesel-powered
WIA: Wounded in Action
WMD: Weapons of Mass Destruction-nuclear, biological, etc.