A four-part series about the making of tomorrow's top commanders. Michael Cockerell reports on the lives of young officers at the Army Staff College, Camberley.

'People used to think that the next war would be just one bloody great bang and that would be the end of it - but it won't.'

Thinking the unthinkable - nuclear war - is part of life at the Staff College. The officers learn what it would be like to fight and command in the face of nuclear and chemical weapons.

The Camberley Commandant, General Sir Frank Kitson, has helped devise new tactics for the British army against a Soviet invasion of the West. 'The Communist aim is world domination,' says one student. And they learn at first hand about the other enemy, closer to home, that they are told increasingly threatens the British way of life - the IRA. The officers produce their ideas for solving the Irish problem.