Answer:
When the Soviet Union's oil and gas revenue dropped dramatically, the USSR began to lose its hold on Eastern Europe. Meanwhile, Gorbachev's reforms were slow to bear fruit and did more to hasten the collapse of the Soviet Union than to help it. ... On December 25, Gorbachev resigned as leader of the USSR.
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A.Irrigate
They need to make an irrigation system to water their crops
Very long story short, farming and sugar, as well as a port to china, east india and asia. and the islands were a prime place for a navel base.