LONDON, ENGLAND - OCTOBER 31: Prince Charles, Prince of Wales (L) and Indonesian President Susilo Bambang Yudhoyono (R) share a joke as they look at an Oxford Centre for Islamic Studies exhibition ... more 

LONDON, ENGLAND - OCTOBER 31: Prince Charles, Prince of Wales (L) and Indonesian President Susilo Bambang Yudhoyono (R) share a joke as they look at an Oxford Centre for Islamic Studies exhibition during a visit to Clarence House on October 31, 2012 in London, England. During President Yudhoyono and his wife's three day State Visit to the UK they will stay in Buckingham Palace and meet with members of the Royal Family, Prime Minister David Cameron and lay a wreath at the Grave of the Unknown Warrior in Westminster Abbey. (Photo by Ben Stansall - WPA Pool /Getty Images) less