Examines how U.S national security strategy and the USAF might change to cope with future major regional conflicts and counterterrorism, counterinsurgency, and nation-assistance operations. Calls for a new division of labor among the armed forces to adapt them to new challenges and recommends that the USAF undertake new initiatives to: counter enemy ballistic and cruise missiles; identify, track, and engage small, mobile, or concealed targets; neutralize adversary nuclear weapons; and provide assistance to friendly governments threatened by insurgencies or terrorist groups.