Cuban leader Raul Castro (L) and El Salvador's President Salvador Sanchez Ceren inspect the guard of honor during a welcoming ceremony in the Revolution Palace, Havana, Cuba, on May 27, 2015. (Xinhua/Ismael Francisco/Cubadebate/Prensa Latina)

Cuban leader Raul Castro (R) talks with El Salvador's President Salvador Sanchez Ceren during their meeting in the Revolution Palace, Havana, Cuba, on May 27, 2015. (Xinhua/Ismael Francisco/Cubadebate/Prensa Latina)