We write about this in Mojito! Turns out we were seeing the future...
We speculated that this would happen because of Castros' Cuba need for cash and the most ready source without strings would be from Saudi Arabian and their clients.

http://archiviostorico.corriere.it/2011/agosto/31/Hezbollah_sbarca_Cuba_Prepara_nuove_co_9_110831020.shtml