Sir Richard Dannatt - Former Head of the British Army

Is there a growing mismatch between Britain's self-image as a major international power and the military resources she can bring to the table?

Afghanistan, Iraq and now Libya - the cumulative strain on the British armed forces has been immense; and now the British government wants big cuts in the defence budget.

Stephen Sackur speaks to General Lord Dannatt, former Head of the British Army. What happens when the military ambition is there but the money is not?