United Kingdom Prime Minister David Cameron (L), Colombia President Juan Manuel Santos and US Secretary of State John Kerry (R) attend the Ford Foundation in New York on September 27, 2015. AFP PHOTO/DOMINICK REUTER        (Photo credit should read DOMINICK REUTER/AFP/Getty Images)
MEXICO CITY, MEXICO - NOVEMBER 03:  Prince Charles, Prince of Wales is welcomed by Mexican President Enrique Pena Nieto at the Palacio National on November 3, 2014 in Mexico City, Mexico. The President and The Prince launched the Year of the U.K. in Mexico 2015. The Royal Couple are on the second day of a four day visit to Mexico as part of a Royal tour to Colombia and Mexico. (Photo by Arthur Edwards - Pool/Getty Images)
LONDON, NOVEMBER 21:  Queen Elizabeth II shakes hands with the President of Columbia Juan Manuel Santos as his wife Maria watches on during a private audience in Buckingham Palace on November 21, 2011 in London, United Kingdom. (Photo by John Stillwell - WPA Pool/Getty Images)
LONDON - JULY 17:  Colombian President-elect Alvaro Uribe Velez (L) meets the British Prime Minister Tony Blair July 17, 2002.  In the meeting Blair and Velez spoke about the immunity of two Colombian embassy officials. The officials are the prime suspects in the killing of Damien Broom in May 2002, and Colombia has so far resisted pressure from the British Foreign Office to strip the men of their diplomatic immunity.  (Photo by John Li/Getty Images)