34 United States. Department of Defense 33 United States. Joint Chiefs of Staff 32 U.S. Army Command and General Staff College 29 Naval War College (U.S.) 28 Naval Postgraduate School (U.S.) 20 Air Force Institute of Technology (U.S.) 20 U.S. Army Research Laboratory 16 United States. Army 16 United States. Department of State 14 North Atlantic Treaty Organization 10 Army War College (U.S.) 8 Center for Naval Analyses 8 United States. Department of the Air Force 8 United States. Department of the Army 7 North American Electric Reliability Corporation 6 European Food Safety Authority 6 United States. Central Intelligence Agency 5 United States. Air Force 4 CNA Corporation 4 National Defense University 3 Air University (U.S.) 3 Army War College (U.S.). Center for Strategic Leadership and Development 3 Foreign Service Institute (U.S.) 3 Mitre Corporation 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 3 United States. Joint War Games Agency 2 Canada. Department of National Defence 2 Carnegie Mellon University 2 Center for Army Analysis (U.S.) 2 Great Britain. Ministry of Defence 2 Hoover Institution Library & Archives 2 National Intelligence Council (U.S.) 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 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. War Office 1 Great Britain 1 Hudson Institute 1 Joint Forces Staff College (U.S.) 1 Joint Military Intelligence College (U.S.) 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 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 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

148 Reports 71 Thesis 34 Articles 30 Games 29 Research 22 Memorandums 13 Monographs 11 Interviews 9 Book reviews 9 Manuals 6 Catalogs 2 Presentations 2 Technical manuals 1 Correspondence 1 Game reports 1 Meeting minutes 1 Papers 1 Press releases

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

21 Defense/War Department 14 Military (officers and civilians) 13 Land/ground 11 Naval 10 Air 10 Interstate conflict 9 Declassified 7 Unclassified 4 Military campaign games 4 Nuclear 4 Subject Matter Experts (SMEs) 4 Think tanks 3 Counterinsurgency (COIN) 3 Humanitarianism 3 Strategic planning 3 Teaching 2 Nuclear warfare 2 Sandhurst Kriegsspiel 2 Weather 1 Academic 1 Army After Next 1 Artillery expenditure 1 Authoritarian 1 CHI Games 1 Casualty rates 1 Civil-military relations 1 Convenience sample (public) 1 Crisis management 1 Cyber 1 Cyberinfrastructure 1 Disaster games 1 Engineers 1 Governance games 1 Government 1 Great Power competition (GPC) 1 Ground combat 1 International relations 1 Intra-state violence 1 Military 1 Military history 1 Military operations on urbanized terrain (MOUT) 1 Multinational naval cooperation 1 Naval operations 1 Operations other than war 1 Peacekeeping 1 Politics 1 Rate of advance 1 Real countries/players 1 Resistance 1 SIGMA Games 1 Space 1 Special operations forces (SOF) 1 State building 1 Students 1 Tank loss rates 1 Terrorism 1 Unconventional warfare (UW) 1 Virtual

12 Real countries/players 9 Strategic crisis games 8 Multi-sided 7 20+ players 6 3+ moves 4 Fictional countries/players 4 Free/open adjudication 4 Military campaign games 3 2 sides 3 Large player games 3 Semi-rigid adjudication 3 Think-tank games 2 1 side 2 2 moves 2 Analytic games 2 Declassified games 2 Educational games 2 Experimental games 2 Historical games 2 Hybrid 2 Politico-military games 1 1.5 sides 1 3 moves 1 7 sides 1 Computer simulation 1 Computer-assisted games 1 Counterinsurgency games 1 Disaster games 1 Force ratios 1 Multi-moves 1 Rigid adjudication 1 Small player games 1 Tabletop games 1 Think tank games 1 Two sides