The expansion plans of the soviets led initially to which policy of the early cold war?

The expansion plans of the Soviets led initially to the Containment policy of the early Cold War. The United States established the Containment policy which is primary to prevent the spread of the Communism period. 

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“destroyers for bases agreement in the destroyers for bases agreement between the united states and the united kingdom on september 2, 1940, fifty caldwell , wickes, and clemson class us navy destroyers were transferred to the toyalbnavy from the united states navy in exchange for land rights on british possessions.” i hope this you .