Although most Americans paid little attention to Cambodia during Dwight D. Eisenhower's presidency, the nation's proximity to China and the global ideological struggle with the Soviet Union guaranteed US vigilance throughout Southeast Asia. Cambodia's leader, Norodom Sihanouk, refused to take sides in the Cold War, a policy that disturbed US officials. From 1953 to 1961, his government avoided the political and military crises of neighboring Laos...