Great Britain 1980
First formed in the Second World War for operations behind enemy lines, the SAS have achieved legendary status as the world's most respected soldiers.
They arguably first appeared in the modern public's consciousness in 1980 when Prime Minister Margaret Thatcher deployed them to stunning effect to break the Iranian Embassy siege in central London.
Dropping onto the embassy from a helicopter then entering through the windows, these mysterious men were now unavoidably now in the public eye. The soldier pictured is dressed as he would have been for this operation.