As more Nato troops head for Afghanistan, the British public is beginning to worry about their country's role in the war effort.

Concern is growing that the UK's financial woes will force the government to cut military budgets, despite the last year being the deadliest yet for British forces in Afghanistan.

More than 250 British soldiers have died in Afghanistan since the country was invaded in October 2001.

There are now more than 10,000 British troops in Afghanistan, with more set to arrive in the country to join the US troop surge.

Is the increase in troops in the best interests of the British military? And can foreign forces ever win a war in Afghanistan?

The Riz Khan show is joined by Bob Ainsworth, the UK's secretary of defence.

This episosde of the Riz Khan show aired on Monday, January 25, 2010.