Description based on: 1992. current department of defense secretaries of defense, deputy secretaries of defense, secretaries of the military departments, army, navy, air force, under secrectaries of defense, acquisition and technology, policy, comptroller, personnel and readiness, assistant secretaries of defense and other defense officials, administration, atomic energy, civil defense, command, control, communications, and intelligence, c3i, economic security,general counsel, health affairs, inspector general, international security, legislative affairs, manpower, operational test and evaluation, program analysis, public affairs, research, engineering, reserve affairs, special operations, low intensity conflict, supply, logistics, installations, joint chiefs of staff, unified and specified commands, defense agencies, department of defense field activities, organizational charts, manpower