In his book Cold War: The American Crusade against World Communism, James Warren discusses the conflict between the United States and the Soviet Union, its causes, consequences and its future. Warren also analyzes why the United States was so afraid of communism and how this fear controlled both U.S. domestic and foreign policy. In his farewell address, George Washington warned future leaders to avoid foreign involvement. However, the United States deviated from this policy in 1941 after the bombing of Pearl Harbor. From then on, the United States understood that its great power came with great responsibilities. The United States felt responsible for developing a strategy to combat the spread of global communism, considered the "red menace." The United States believed that communism would spread from the Soviet Union throughout Europe; The United States understood that the spread of communism would not be very difficult, as the destruction caused by World War II left many countries vulnerable to communism. Furthermore, the Soviet Union had a highly trained military, a ruthless leader, and a nation committed to Marxism-Leninism, believing that human progress is the destruction of Western democracy and capitalism. The Cold War was a military, diplomatic, economic and scientific struggle between the Soviet Union and the United States. The rivalry between these two nations has also affected countries like Korea, Ethiopia, Nicaragua, Malaysia and Vietnam. The Cold War controlled many of the crises that occurred in the second half of the 20th century. The major conflict was, of course, the threat of nuclear weapons. Thomas Larson wrote that "vulnerability to weapons that could destroy entire countries... increased fears and antagonisms and caused the reader to put concepts such as war spending into perspective." Warren convinces the reader of his argument that the Cold War was not only a nuclear arms race, but also a military, diplomatic, economic, and scientific struggle between the Soviet Union and the United States that had effects on the domestic front and on international affairs. He does this by addressing the Truman Doctrine and the Marshall Plan, the Berlin Airlift, the loss of China, the Korean War, the Cold War on the home front, the Eisenhower presidency, Kennedy and the New Frontier and his reaction to Cuba, the Vietnam War. , presidential action from Nixon to Carter, and how all of these things intensified the Cold War. Warren not only convinces the reader of this argument, but through it he also communicates the importance of learning from this event so that future generations can prevent this from happening again..