Combat survival 11 Handbooks, manuals, etc 9 History 8 Management 7 Campaigns 6 World War, 1939-1945 6 Case studies 5 Cost accounting 5 First aid in illness and injury 5 Special forces (Military science) 5 Army 4 Commando troops 4 Cost control 4 Drone aircraft 4 Survival skills 4 Wilderness survival 4 World War, 1914-1918 4 Armed Forces 3 Cost effectiveness 3 International relations 3 Leadership 3 Survival after airplane accidents, shipwrecks, etc 3 United States 3 Activity-based costing 2 Biography 2 Cost of operation 2 Costs 2 Cross-cultural studies 2 Economic aspects 2 Fighter pilots 2