36 United States. Department of Defense 34 United States. Joint Chiefs of Staff 33 U.S. Army Command and General Staff College 30 Naval Postgraduate School (U.S.) 29 Naval War College (U.S.) 20 Air Force Institute of Technology (U.S.) 20 U.S. Army Research Laboratory 17 North Atlantic Treaty Organization 17 United States. Department of State 16 United States. Army 10 Army War College (U.S.) 9 CNA Corporation 8 United States. Department of the Air Force 8 United States. Department of the Army 7 North American Electric Reliability Corporation 7 United States. Air Force 6 European Food Safety Authority 6 United States. Central Intelligence Agency 4 National Defense University 4 United States. Joint War Games Agency 3 Air University (U.S.) 3 Army War College (U.S.). Center for Strategic Leadership and Development 3 Center for Army Analysis (U.S.) 3 Foreign Service Institute (U.S.) 3 Hoover Institution Library & Archives 3 U.S. Army Combined Arms Center 3 United States. Advanced Research Projects Agency 3 United States. Animal and Plant Health Inspection Service 3 United States. Department of Defense. Office of the Secretary of Defense 3 United States. Department of State. Office of the Historian 2 Canada. Department of National Defence 2 Carnegie Mellon University 2 European Values Center for Security Policy 2 Great Britain. Ministry of Defence 2 Mitre Corporation 2 National Intelligence Council (U.S.) 2 Patterson School of Diplomacy and International Commerce 2 Royal Military Academy, Sandhurst 2 Sandia National Laboratories 2 United States. Army Training and Doctrine Command 2 United States. Department of the Navy 2 Verlag E.S. Mittler & Sohn 1 Abt Associates 1 California. Department of Food and Agriculture 1 Canada 1 Center for Army Lessons Learned (U.S.) 1 Center for a New American Security 1 Curtis E. LeMay Center for Doctrine Development and Education 1 Defence Academy of the United Kingdom 1 Defence Science and Technology Group (Australia) 1 Defence Science and Technology Organisation (Australia) 1 Defense Technical Information Center (U.S.) 1 European Central Bank 1 Germany. Bundestag 1 Great Britain. Royal Navy. Women's Royal Naval Service (1939-1993) 1 Great Britain. War Office 1 Great Britain 1 Hudson Institute 1 Institute for National Defense and Security Research 1 Joint Forces Staff College (U.S.) 1 Joint Military Intelligence College (U.S.) 1 Massachusetts Institute of Technology 1 NATO Defense College 1 National Archives (Great Britain) 1 National Defense University. Center for Strategic Research 1 National Security Council (U.S.) 1 Naval History & Heritage Command (U.S.) 1 Naval War College (U.S.). Cyber and Innovation Policy Institute 1 Nederlandse Organisatie voor Toegepast-Natuurwetenschappelijk Onderzoek 1 Nonproliferation Policy Education Center 1 Northrop Grumman Information Technology (Firm) 1 Peacekeeping and Stability Operations Institute 1 Poland. Państwowa Inspekcja Sanitarna 1 Rand Corporation 1 Research Analysis Corporation 1 Royal Armament Research and Development Establishment (Great Britain). Basic Research and Weapon Systems Analysis Division 1 Sweden 1 U.S. Army Command and General Staff College. School of Advanced Military Studies 1 U.S. Army Concepts Analysis Agency 1 United States. Air Force Space Command 1 United States. Air Force. Strategic Air Command 1 United States. Central Command 1 United States. Department of Agriculture 1 United States. Department of Homeland Security. National Cyber Security Division 1 United States. Department of Transportation 1 United States. Federal Aviation Administration 1 United States. Government Accountability Office 1 United States. Joint Forces Command 1 United States. Marine Corps 1 United States. National Military Command System Support Center 1 United States. Office of the Secretary of Defense for Net Assessment 1 United States. War Department 1 University of Louisville 1 World Bank

150 Reports 71 Thesis 34 Articles 30 Research 29 Games 22 Memorandums 13 Monographs 12 Interviews 9 Book reviews 9 Manuals 6 Catalogs 2 Technical manuals 1 Game reports 1 Meeting minutes 1 Presentations 1 Press releases

397 English 3 German 1 French 1 Polish 1 Russian 1 Slovak 1 Turkish

69 Defense/War Department 58 Military (officers and civilians) 33 Naval 33 Real country 32 Land/Ground 32 Unclassified 29 Air 23 Interstate conflict 22 Subject Matter Experts (SMEs) 21 Academic 21 Declassified 18 Strategic planning 13 Nuclear 11 Land/ground 8 Humanitarian 8 State Department/Foreign Ministry 8 Think Tank 7 Information Technology 7 Logistics 6 Cyber 6 Intra-state violence 6 Students 5 Economic 5 Hoover Institution Library & Archives collections 5 Made-up countries 4 Climate/Environmental disaster 4 Missiles 4 Public health crisis 4 Space 3 Authoritarian 3 Counterinsurgency (COIN) 3 Food crisis 3 Human Relations/Labor 3 International Organization 3 Pandemic/Biological disaster 3 Pricing/Markets 3 Terrorism 3 Think tanks 2 Democracy 2 EW 2 Executive Cabinet 2 Nuclear warfare 2 Private Industry 1 AI/Autonomy 1 Artillery expenditure 1 CHI Games 1 Casualty rates 1 Civil-military relations 1 Convenience sample (public) 1 Crisis management 1 Cyberinfrastructure 1 Defense/war department 1 Government 1 Great Power competition (GPC) 1 Ground combat 1 Humanitarianism 1 International relations 1 Military 1 Military history 1 Multinational naval cooperation 1 Naval operations 1 Operations other than war 1 Peacekeeping 1 Politics 1 Rate of advance 1 Resistance 1 SIGMA Games 1 Sandhurst Kriegsspiel 1 Special operations forces (SOF) 1 State building 1 Tank loss rates 1 Teaching 1 Unconventional warfare (UW) 1 Virtual

37 Military campaign game 31 3+ Moves 26 Strategy/Crisis game 25 Multi-sided 16 Tabletop game 15 2 Sides 15 Deterministic/Stochastic 14 20-100 Players 14 Board game 13 Hybrid 12 Real countries/players 11 Strategic crisis game 11 Virtual interface 9 Free/Open Adjudication 8 2 Players 8 Disaster game 7 1 Side 7 Military campaign games 6 6-20 Players 6 Analytic game 6 Strategic crisis games 5 2 Moves 5 3+ moves 5 Experimental game 5 Historical game 5 Large player game 4 100+ Players 4 20+ players 4 Fictional countries/players 4 Observational/Brainstorming game 3 1 Move 3 Business game 3 Counter-insurgency game 3 Semi-rigid Adjudication 3 Semi-rigid adjudication 3 Think-tank games 2 1 Player 2 1 side 2 1.5 Sides 2 2 sides 2 3-5 Players 2 Declassified games 2 Disaster games 2 Free/open adjudication 2 Historical games 2 Large player games 2 Politico-military games 2 Real country 2 Small player game 1 2 moves 1 3 moves 1 7 sides 1 Analytic games 1 Computer simulation 1 Counterinsurgency games 1 Educational games 1 Experimental games 1 Force ratios 1 Governance game 1 Governance games 1 Multi-moves 1 Rigid adjudication 1 Small player games 1 Two sides