Trump has threatened a 'friendly takeover' of Cuba after cutting it off from Venezuela's oil. CNBC's Justin Solomon reflects how different things used to be.

The communist-run island nation is thought to be facing its biggest test since the collapse of the Soviet Union amid a U.S. oil blockade.

Trump has threatened a 'friendly takeover' of Cuba after cutting it off from Venezuela's oil. CNBC's Justin Solomon reflects how different things used to be.