Because they felt they could make more money if they were free to sell foreign markets themselves
International trade creates jobs by providing more positions depending on consumer demand, it shifts jobs by moving more people to a product that has a higher demand.
FURTUM, "theft," is one of the four kinds of delicts which were the foundation of obligationes; it is also called "crimen." Moveable things only could be the objects of furtum; for the fraudulent handling (contrectatio fraudulosa) of a thing was furtum, and contrectatio is defined to be "loco movere.
During the 1950s, as a result of war and conquering, the status of most countries in Eastern Europe is that they became satellite countries of the Soviet Union at that time. Most countries that neighbor the Soviet Union were heavily influenced by it in terms of politics, military and economy.