The answer is: A high demand for cotton.
Response to the presence of American Jupiter ballistic missiles in Italy and Turkey, and the failed Bay of Pigs Invasion of 1961, Soviet First Secretary Nikita Khrushchev agreed to Cuba's request to place nuclear missiles on the island to deter a future invasion.
Answer:
Mongolia's cold winter temperatures is caused by high altitude, and can also be far from sea to have extremely Continental climate with cold winters. The temperatures can reach -30°c and less.