Defense Advanced Research Projects Agency (DARPA)

Defense, Self-defense, Right of self-defense, Missile Defense Agency, United States Department of Defense, Assistant Secretary of Defense for Homeland Defense and Hemispheric Affairs, Under Secretary of Defense for Policy, Missile defense, Assistant Secretary of Defense for Nuclear, Chemical & Biological Defense Programs, United Defense, Affirmative defense, Defense (legal), United States Assistant Secretary of Defense, Ministry of Defense (Japan), Defense Logistics Agency, Gay panic defense, Aerospace Defense Command, Ministry of Defense (Israel), Earth Defense Force, United States Deputy Under Secretary of Defense, Cœur Défense, Defense Distributed, Civil defense in the United States, Defense (sports), United States Deputy Secretary of Defense, La Défense station, Office of Civil Defense, United States Secretary of Defense, Defense Language Institute, United States national missile defense, Defense Update, Defense Information Systems Agency, Defense pact, La Défense, Territorial Defense, Air Defense Artillery Branch, Civil defense, Ministry of Defense (Saudi Arabia), Self-defense force, Defense Clandestine Service, Under Secretary of Defense for Intelligence and Security

Abuse defense, Chewbacca defense, Box-and-one defense, Defense Acquisition University, Tower defense, State defense force, Marine defense battalions, Private defense agency, Defense Acquisition Program Administration, Impossibility defense, 4–3 defense, Office of the Secretary of Defense, Air Defense Command (Israel), National Council for the Defense of Democracy – Forces for the Defense of Democracy, Assistant Secretary of Defense for Acquisition, Defense Intelligence Agency, Civil defense by country, Ministry of Defense (Afghanistan), Gunderam Defense, Assistant to the Secretary of Defense for Public Affairs, Criminal defense lawyer, Japan Self-Defense Forces, National Defense Industrial Association, 4703d Defense Wing, 3–4 defense, Insanity defense, Missile defense systems by country, Secretary of National Defense (Philippines), Eastern Air Defense Sector, Secretary of Defense Medal for the Defense of Freedom, National Defense Area, Queen's Knight Defense, Line defense, List of ministers of defense (Indonesia), Twinkie defense, Department of Defense Office of Inspector General, Defense Media Activity, Southwest Air Defense Sector, National Defense College of the Philippines, Self Defense Fleet, Defense Policy Board Advisory Committee, Territorial Defense (Yugoslavia), Modern Defense, Department of Defense Dependents Schools, Assistant Secretary of Defense for Space Policy, Chigorin Defense, Boston Air Defense Sector, Economics of defense, Western Air Defense Sector, Defense industry of Israel

Defense, Self-defense, Right of self-defense, Missile Defense Agency, United States Department of Defense, Assistant Secretary of Defense for Homeland Defense and Hemispheric Affairs, Under Secretary of Defense for Policy, Missile defense, Assistant Secretary of Defense for Nuclear, Chemical & Biological Defense Programs, United Defense, Affirmative defense, Defense (legal), United States Assistant Secretary of Defense, Ministry of Defense (Japan), Defense Logistics Agency, Gay panic defense, Aerospace Defense Command, Ministry of Defense (Israel), Earth Defense Force, United States Deputy Under Secretary of Defense, Cœur Défense, Defense Distributed, Civil defense in the United States, Defense (sports), United States Deputy Secretary of Defense, La Défense station, Office of Civil Defense, United States Secretary of Defense, Defense Language Institute, United States national missile defense, Defense Update, Defense Information Systems Agency, Defense pact, La Défense, Territorial Defense, Air Defense Artillery Branch, Civil defense, Ministry of Defense (Saudi Arabia), Self-defense force, Defense Clandestine Service, Under Secretary of Defense for Intelligence and Security, Abuse defense, Chewbacca defense, Box-and-one defense, Defense Acquisition University, Tower defense, State defense force, Marine defense battalions, Private defense agency, Defense Acquisition Program Administration, Impossibility defense, 4–3 defense, Office of the Secretary of Defense, Air Defense Command (Israel), National Council for the Defense of Democracy – Forces for the Defense of Democracy, Assistant Secretary of Defense for Acquisition, Defense Intelligence Agency, Civil defense by country, Ministry of Defense (Afghanistan), Gunderam Defense, Assistant to the Secretary of Defense for Public Affairs, Criminal defense lawyer, Japan Self-Defense Forces, National Defense Industrial Association, 4703d Defense Wing, 3–4 defense, Insanity defense, Missile defense systems by country, Secretary of National Defense (Philippines), Eastern Air Defense Sector, Secretary of Defense Medal for the Defense of Freedom, National Defense Area, Queen's Knight Defense, Line defense, List of ministers of defense (Indonesia), Twinkie defense, Department of Defense Office of Inspector General, Defense Media Activity, Southwest Air Defense Sector, National Defense College of the Philippines, Self Defense Fleet, Defense Policy Board Advisory Committee, Territorial Defense (Yugoslavia), Modern Defense, Department of Defense Dependents Schools, Assistant Secretary of Defense for Space Policy, Chigorin Defense, Boston Air Defense Sector, Economics of defense, Western Air Defense Sector, Defense industry of Israel, Defense Systems, Esplanade de La Défense station, Shaggy defense, List of United States defense contractors, Scandinavian Defense, 5–2 defense, Matrix defense, Raytheon Missiles & Defense, Criminal defenses, Under Secretary of Defense for Research and Engineering, Spokane Air Defense Sector, Ministry of National Defense (Taiwan), Ministry of Defense (Venezuela), Defense Criminal Investigative Service, Comités de défense paysanne, Continental Air Defense Command, Verbal self-defense, Defense Grid: The Awakening, Ministry of Defense (Kazakhstan), Ministry of Defense (Ethiopia), 10th Aerospace Defense Group, Ground-Based Midcourse Defense, Pac-Man defense, Defense Acquisition Board, Defense Threat Reduction Agency, Michigan Defense Force, Civil Defense Patrols, Under Secretary of Defense for Acquisition and Sustainment, Defense Counterintelligence and Security Agency, Agency for Defense Development, 4702d Defense Wing, Harbor Defense Command, Minister of Defense (Japan), Defense Attaché System, Minister of Defense (Austria), Defense Companies (Syria), Defense Security Cooperation Agency, Deacons for Defense and Justice, Aegis Ballistic Missile Defense System, Council of National Defense, Modern Defense, Norwegian Defense, Ministry of Defense (Turkmenistan), Center for Defense Information, Justifiable Defense, Civil Air Defense Bureau (China), National Defense Management Center, Department of Defense Cyber Crime Center, Ministry of National Defense (China), Imperfect self-defense, 2–3 zone defense, Friends of the Israel Defense Forces, Ministry of Defense (Syria), Director of the Defense Intelligence Agency, Ministry of National Defense (Madagascar), National Defense Authorization Act, List of Department of Defense appointments by Joe Biden, Empire Defense Council, 103rd Territorial Defense Brigade (Ukraine), 4733d Air Defense Group, National Defense Academy of Japan