How Far Was Stalin's Containment A Success?

In my opinion, the containment was a success. Containment meant to fight a number of small wars and staying on guard against Soviet moves, and continuing the arms race which eventually became too costly for the Soviets and bankrupted them.
When a victorious conclusion to the war with Germany seemed inevitable, Roosevelt, Stalin, and Churchill met at the Yalta Conference in February 1945. They made strategic plans to defeat Germany and began discussing crucial postwar issues. Stalin agreed that the Soviet Union would allow Poland, Bulgaria, and Romania to have free democratic elections after the war. Upon the conclusion of the war, Stalin quickly broke his promise and installed communist governments in these countries without even the pretense of an election. The U.S. and its allies were stunned at Stalin's betrayal and feared that the Soviets would attempt to expand communism throughout Europe. Stalin claimed that he was doing nothing wrong and that securing the loyalty of the Soviet Union's western neighbors would help insulate the Soviet Union against future hostilities. Resentment continued to grow as both the U.S. and the USSR viewed the other as treacherous and dangerous.
in a new and unfamiliar role. Having previously chosen to remain relatively isolated, America was now cast as a world leader. American leaders quickly realized that a plan was required to address the Soviet Union. George F. Kennan was a brilliant U.S. diplomat and an expert on the Soviet Union. In 1946, he was stationed in Moscow, and the State Department asked him to clarify recent Soviet conduct. The world had never seen a threat like communism or a nation that behaved as the Soviet Union did, and the West was confused about how to address these issues. Kennan was one of the few western experts on the Soviet Union, and he was essentially tasked with creating a policy that would be used to deal with the Soviet