As the oldest, most experienced and most respected of the special forces, the SAS have either inspired or trained just about every other special forces unit in the world, from the American Delta Force to the mythical Israeli Sayeret Matkal.
Who Dares Wins
The SAS selection course is one of the most physically and psychologically demanding special forces tests in the world. While many attempt to join the British army’s elite fighting unit, most will fail, with a pass rate of less than 10%.
SAS selection process
The infamous SAS selection process is one of the toughest in the world. It aims to test not only candidates’ physical endurance but also their psychological resilience. Only those with incredible mental strength and stamina will make the grade and earn the right to wear the sand colored beret of the SAS.
The Special Air Service
Throughout World War Two, they disrupted Nazi operations by destroying vehicles, weapons and supply routes, inflicting heavy losses along the way.
Since then the SAS has been deployed in conflicts across the world, including Malaya, the Falklands, Afghanistan, Libya, and Syria.
Watch clips from Special Forces – Ultimate Hell Week on BBC Two.
More Details: BBC