Title: Challenging the United States symmetrically and asymmetrically
Subjects: Forecasting, World politics, National security, Defenses, War, Military policy, Conventional Warfare, Effect of technological innovations on, Terrorism, Computer viruses, Biological warfare, Military doctrine, Strategy, Vietnam War, 1961-1975, American Aerial operations, World War, 1939-1945, Strategic aspects
Places: United States
Time periods: 1989-