The SAS have earned their reputation as the world's toughest fighting unit, from the Falklands War to Kosovo, the Gulf War and other crises elsewhere. This is a step-by-step guide to the tactics of such elite units, with true accounts of the SAS's most famous exploits, as well as those of crack US Army units such as Delta Force and the Green Berets. It includes: how the SAS and other elite units came into being and how they work; combat techniques in hostile environments, from the Sahara to the Artic; evasion, capture and escape routes; personal skills, including navigation, combat tracking and hazard avoidance; and wilderness survival skills.