I suspect that Castro helps Chavez in return with training of "bolivarian" neighborhood commitees and goon squads and such "ideological" support. In turn for his assistance, Castro gets money or something from his new pal Iran. I bet the Iranians are stingier than the Soviets.
I suspect that Castro helps Chavez in return with training of "bolivarian" neighborhood commitees and goon squads and such "ideological" support. Yes, well that's slave labor - Cubans who's labor is bartered for oil, doesn't cost Castro much.
I imagine the guest host feeds and houses them. Zimbabwe also uses slave doctors and teachers sent there by Castro.
Iran and Castro have a real dandy biochemical study relationship going on.