Department of Defense authorization for appropriations for fiscal year 1980. hearings before the Committee on Armed Services, United States Senate, Ninety-sixth Congress, first session on S. 428, to authorize appropriations for fiscal year 1980, for procurement of aircraft, missiles, naval vessels, tracked combat vehicles, torpedoes, and other weapons, and research, development, test, and evaluation for the armed forces, and to prescribe the authorized personnel strength for each active duty component and of the selected reserve of each reserve component of the armed forces and of civilian personnel of the Department of Defense, and to authorize the military training student loads, and for other purposes. Part 1, Defense posture: Secretary of Defense and Chairman of the Joint Chiefs of Staff; Budget priorities and management issues: Deputy Secretary of Defense and secretaries of the military services; Strategic nuclear posture: Under Secretary of Defense and representatives of the Navy and Air Force, January 25, 30, February 1, 1979 :