50 points! Where and How Did the U. S. Contain Communism Best? Explain. (Berlin, Korea, or Cuba) Thanks^^

Berlin

Explanation:

Korea and Cuba both still have communist states. Berlin was divided after WWII and the eastern half was under the control of the soviet union, however, the U.S. successfully integrated west berlin into a democratic capitalist society, and after the fall of the U.S.S.R Berlin and Germany was successfully reunified and Germany is still a democratic, capitalist state.