LONDON, UNITED KINGDOM - NOVEMBER 10:  Former British Prime Minister Sir John Major (C) and current British Prime Minister David Cameron (R) stand in front of the Cenotaph on Whitehall during the annual Remembrance Sunday service on November 10, 2013 in London, United Kingdom. People across the UK gathered to pay tribute to service personnel who have died in the two World Wars and subsequent conflicts, as part of the annual Remembrance Sunday ceremonies.  (Photo by Matthew Lloyd/Getty Images)