Although less remembered than some of his colleagues, American diplomat Loy Henderson often stood in the thick of controversy during his distinguished forty-year career. An uncompromising and frequently contentious anti-communist, Henderson left his unmistakable imprint on many crucial policy decisions, ranging from the delay of recognition of the Soviet Union in the 1920s and 1930s, to the Truman doctrine of the 1940s, to the overthrow of the Mosadeq government of Iran during the 1950s. Now, in this fascinating biography, H.W. Brands recounts Loy Henderson's far-flung diplomatic career and, in doing so, opens a window onto the entire Cold War Era. Henderson's ascent to a position of major influence among American foreign-policy makers paralleled the rise of the United States to unprecedented influence in global affairs, with anti-communism providing much of the impetus and rationale in both cases. Henderson acquired his life-long preoccupation with the communist menace--a preoccupation that reflected his psychological make-up and personal history, as well as the objective actions of Soviet leaders--in Moscow in the mid-1930s, when he served with the first group of American diplomats posted to the Soviet Union. He witnessed directly the terror and brutality of the Stalinist system, and he spent the rest of his career agitating against anything that might facilitate the spread of that system. Henderson's refusal to compromise his convictions threw him repeatedly