By the end of the 1980s, more than 80 percent of Cuban trade was with the USSR, which also provided Cuba with a subsidy of state support worth an estimated US$5 billion annually.
In return for state subsidies, Cuba proved to be a loyal ally to the USSR.
mnli hypothesis: In return for state subsidies, Cuba proved to be a loyal ally to the USSR. premise: By the end of the 1980s, more than 80 percent of Cuban trade was with the USSR, which also provided Cuba with a subsidy of state support worth an estimated US$5 billion annually.