Streatfeild: We must learn lessons from Afghanistan
14 April 2014 Last updated at 15:46 BST
The British military pull out from Afghanistan will soon be completed. Digesting the painful lessons from a 12-year deployment could take a whole lot longer.
HARDtalk speaks to Richard Streatfeild, a former infantry officer in Helmand during some of the toughest fighting with the Taliban. Back then he kept an upbeat audio diary of life on the frontline - now he takes a more jaundiced view of Britain's Afghan commitment. Is it time to acknowledge failure?
He reflects on whether the Afghan war has been worth it, whether he felt it was worth it at the time, and his feelings towards having to justify it to his men despite his reservations.
You can watch the full interview on BBC World News on Monday 14 April at 14:30 GMT and 20:30 GMT, on the BBC News Channel on Tuesday 15 April at 00:30 BST.