The Special Boat Squadron - Sphere

The crucial missions of the SBS are hidden in even deeper secrecy than those of the SAS, but from their earliest days in World War II the SBS have played a lethal undercover role in countless battles. In the Falklands War they made perilous reconnaissance missions into closely-guarded occupied islands. They burrowed deep inside enemy-held territory, gathering crucial intelligence information and striking when least expected.

Here is the full inside story of the highly-trained fighting men who have become one of Britain's most powerful and deadly weapons.