British Army Captain Euan Sandison walks after returning from a mission to the Patrol Base Jahan Zeb in a desert outside the town of Lashkar Gah in Helmand province, southern Afghanistan, July 17, 2011. Sandison, part of Britain's Brigade Advisory Group which mentors the Afghan National Army, is one of a small number of British soldiers who have been given in-depth training in the Dari language, the language commonly spoken in the army in Afghanistan. That has put him at the centre of efforts to prepare Afghan security forces to take over from foreign troops who plan to end combat operations in the country by the end of 2014. Picture taken July 17, 2011.