Pope Francis (C-L) and the head of the Russian Orthodox Church, Patriarch Kirill (C-R) sign documents next to Cuban President Raul Castro (R) during a historic meeting in Havana on February 12, 2016. Pope Francis and Russian Orthodox Patriarch Kirill kissed each other and sat down together Friday at Havana airport for the first meeting between their two branches of the church in nearly a thousand years. AFP PHOTO / POOL - Gregorio Borgia / AFP / POOL / GREGORIO BORGIA        (Photo credit should read GREGORIO BORGIA/AFP/Getty Images)