Cuban leader Raúl Castro, next to his grandson and bodyguard, Raul Rodriguez Castro, attends the May Day parade at Revolution Square of Havana, on May 1, 2017. (Adalberto Roque/AFP via Getty Images)
Cuban leader Raúl Castro, next to his grandson and bodyguard, Raul Rodriguez Castro, attends the May Day parade at Revolution Square of Havana, on May 1, 2017. (Adalberto Roque/AFP via Getty Images)