British commando frogmen

Britain's commando frogman force is now the Special Boat Service (SBS), whose members are drawn largely from the Royal Marines.

Until the late 1990s, all members of the Special Air Service (SAS) Boat Troop were trained as commando frogmen.

Instead, in the inter-war period the Italian Navy successfully trained the special frogmen corps Decima Flottiglia MAS equipped with a new and powerful craft: a slow speed human torpedo (SLC: siluro a lenta corsa, best known as maiale).

By the end of the war, the British human torpedo operations had earned their participants 20 medals and 16 men had been killed.

Clearance Diving Teams were formed to clear unexploded ordnance and other military hazards left over from the war.