Special Forces (SF) or Special Operations Forces (SOF),
are military units, trained to conduct special operations, such as airborne
operations, counter-insurgency, counter-terrorism, foreign internal defense,
covert operations (covert ops), direct action, hostage rescue, intelligence
operations and unconventional warfare. Most countries in the world have one
or more (secret) SF units, operating under a variety of names,
like Fernspäher (Germany),
Spetsnaz (Russia) and Special Forces (USA).
Special forces are often named
after the British WWII specially trained troops .