British Prime Minister David Cameron arrives for a visit at Camp Bastion, outside Lashkar Gah on Dec. 20, 2012, in Helmand Province, Afghanistan. Prime Minister Cameron is making a Christmas visit to British troops in the region amid tight security.
British Prime Minister David Cameron (R) arrives during a visit to Forward Operating Base Price on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron (R) arrives during a visit to Forward Operating Base Price on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron (2nd R) talks to British soldiers during a visit to Forward Operating Base Price on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron (3rd R) talks to British soldiers during a visit to Forward Operating Base Price on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron reacts as he plays table football with a Royal Marine during a visit to Forward Operating Base Price on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron (R) plays table football with a Royal Marine during a visit to Forward Operating Base Price on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron attends a meeting with Royal Marines during a visit to Forward Operating Base Price on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron (2nd L) eats dinner with British soldiers during a visit to Forward Operating Base Price on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron talks with soldiers in front of Mastiff armoured vehicles at Camp Bastio at Camp Bastion, outside Lashkar Gah on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron attends a meeting with Royal Marines during a visit to Forward Operating Base Price on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron (2nd R) attends a carol service with British, Danish and Bosnian soldiers on Dec. 20, 2012, in Helmand Province, Afghanistan.
British Prime Minister David Cameron attends a carol service with British, Danish and Bosnian soldiers on Dec. 20, 2012, in Helmand Province, Afghanistan.