Defence Secretary Philip Hammond has warned that the Taliban is still a "potent force" in Afghanistan that should not be underestimated.
He said some 15-20 patrol bases had already been handed over to the Afghan National Army, which is becoming more self-sufficient all the time.
But he also said he is optimistic that momentum is building for a process of negotiation between the Afghan government and Taliban.
ITV News' International Correspondent John Irvine spoke to him in Helmand Province:
More top news
An 11-year-old boy has been found guilty of shooting dead an eight-year-old girl in a row over a puppy.
A picture of a mother and her two daughters posted on social media has left people wondering "who's the mum?".
A manhunt is underway after gunmen dressed in women's clothes and SWAT team uniforms attacked a boxing event in Dublin, leaving a man dead.