havana venezuelan president nicolas maduro arrive cuba thursday even surprise visit bring donation goods hurricane irma wreak havoc caribbean island state-run media say friday cuban president raul castro receive maduro havana airport state-run television show two countries close ideological strategic ally call u.s. imperialism aid contribute make damage cause hurricane irma state-run radio station radio reloj say cuba venezuela become strategic ally 2000 rise power socialist hugo chavez south american country hold world large oil reserve undergo major economic crisis agreement exchange oil medical technical service underlie economic relationship continue despite drop oil deliveries venezuela payments cuba service millions venezuela suffer food shortages soar inflation venezuela president bring cuba donation wake hurricane