© Licensed to London News Pictures. 01/03/2012. Hounslow, UK.    Prince Charles, The Prince of Wales, being shown how to fire a paintball gun by The Prince of Wales Guards after Presenting leeks to 1st Battalion The Welsh Guards at Cavalry Barracks,  Hounslow, London on St David's Day, March 1st, 2012.  Two-thirds of the Battalion's 600 soldiers are due to be deployed to Afghanistan in the next two weeks. Photo credit : Ben Cawthra/LNP