How sucessfully did the adminstration of President Eisenhower address the fear of a major war in the US during the Cold War?
If one considers the measure of their success whether a major war actually broke out, the Eisenhower administration was very successful in working against the fear of a major war. They managed to bring the fighting in the Korean peninsula to a halt and avoiding much of the pressure to come in to assist the French in Southeast Asia, pressure that would be irresistable to Kennedy and others that followed him.
One of the major characteristics of the administration was also a personal quality of Eisenhower's which was one of restraint and diplomacy in times of possible crisis. It could certainly be argued that his willingness to take things slowly and work through them helped to assuage the fears of conflict in the US during the Cold War.