jan 10, 1947 - During the Cold War
During the cold war, the US also employed economic sanctions to destabilize unfriendly governments, especially in Latin America.
This is an example of isolationism because the U.S doesn't want other country to see their success , also is HARD POWER because it is sabotaging by putting economic sanctions. which also makes this an act of nationalism.
Added to timeline:
American Foreign Policy During the Cold War