 In February 1946, George F. Kennan laid out the doctrine of containment, which called for the United States to resist the spread of Communism.Wallace feared that confrontational policies towards the Soviet Union would eventually lead to war, and he urged Truman to "allay any reasonable Russian grounds for fear, suspicion, and distrust".Historian Tony Judt wrote in "" that Wallace's "distaste for American involvement with Britain and Europe was widely shared across the political spectrum".