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

'There just isn't room for a complete bunch of thickies running it any more.' So what kind of men will run the army of the future? The young officers talk frankly about their backgrounds and motives, and what they call the 'wifely and financial pressures' on them at the age of 30. To learn what really happens to men under the stress of battle, they visit the D-Day beaches of Normandy. They hear the extraordinary personal stories of the invasion from the commanders of both sides - the British and the Germans. As one brigadier tells them 'Gentlemen, do not be daunted if chaos reigns in spite of your excellent training and orders - it undoubtedly will.'