Cuban President Raul Castro (1st L, back) and First Vice President Miguel Diaz-Canel (3rd L, back) attend a session of Cuba's National Assembly of People's Powers in Havana, Cuba, April 18, 2018. Cuba's National Assembly of People's Powers began a two-day session on Wednesday morning to elect a successor to President Raul Castro. (Xinhua/Roberto Suárez/Juventud Rebelde/Granma)