Answer:
Policy of containment
Explanation:
Containment was an American foreign policy geared at stopping the spread of communism by the Russians after the end of the second world war.
the long telegram was a 8000 worded telegram sent by American diplomat in Russia George Kennan detailing his views on the Soviet government and spread of communism and also suggested policies to be put in place by the American government to stop the spread of communism, this telegram led to the Containment policy by the American government.