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Foreign policy that is aimed aimed at controlling foreign trade by holding colonies and defending them against other foreign powers is: imperialism
Imperialism refers to the view that a country should dominate others in a certain way in order increase its power. Controlling foreign trades by holding colonies is a form of political and economical domination that was popular among Empires in Europe.
Answer: barter
Explanation:
In trade, barter (derived from baretor) is a system of exchange where participants in a transaction directly exchange goods or services for other goods or services without using a medium of exchange, such as money.