HAVANA, CUBA - MAY 01: President of Cuba Miguel Díaz-Canel (L) greets Cubans along with the current first secretary of the Communist Party of Cuba (PCC), Raúl Castro (C) and president of the Communist Party of Chile, Guillermo Teillier (L) during a parade in celebration of the International Labor Day to support the new president and the validity of the revolutionary legacy on May 01, 2018 in Havana, Cuba. (Photo by Ernesto Mastrascusa/Getty Images)