In the U.S. Army, a task force is a battalion-sized (usually, although there are variations in size) ad hoc unit formed by attaching smaller elements of other units. A company-sized unit with an armored or mechanized infantry unit attached is called a company team. A similar unit at the brigade level is called a brigade combat team (BCT), and there is also a similar Regimental combat team (RCT).
In the British Army and the armies of other Commonwealth countries, such units are known...
