To earn their green beret, the men must undergo 12 months of what they believe to be the toughest infantry training in the world - the All Arms Commando Course.
Discover 11,128,835 listings and 279,786 playable programmes from the BBC
To earn their green beret, the men must undergo 12 months of what they believe to be the toughest infantry training in the world - the All Arms Commando Course.