The Special Air Service is the principal special operations organisation of the British Army. Formed in 1941 to conduct raids behind German lines in North Africa. In 1975 they were given extra responsibility in a counter terrorist role in reaction to the attack at the 1972 Summer Olympics in Munich, forming the Counter Revolutionary Warfare (CRW) wing. It forms part of the United Kingdom Special Forces, alongside the Special Boat Service (SBS) and the Special Reconnaissance Regiment (SRR).
The SAS is widely regarded as the finest and best trained special forces unit in the world.