LONDON, ENGLAND - OCTOBER 22: Soldiers of 1 Mechanized Brigade parade to Parliament on October 22, 2013 in London, England. 120 personnel who recently returned from Afghanistan's Helmand Province are attending a reception at the Houses of Parliament. The brigade recently completed a six-month summer tour under the command of Brigadier Rupert Jones, where they supported the Afghan National Security Forces in central Helmand. (Photo by Peter Macdiarmid/Getty Images)

LONDON, ENGLAND - OCTOBER 22:  Soldiers of 1 Mechanized Brigade parade to Parliament on October 22, 2013 in London, England. 120 personnel who recently returned from Afghanistan's Helmand Province are attending a reception at the Houses of Parliament. The brigade recently completed a six-month summer tour under the command of Brigadier Rupert Jones, where they supported the Afghan National Security Forces in central Helmand.  (Photo by Peter Macdiarmid/Getty Images)