Armed Forces 22 Maintenance and repair 19 Airplanes, Military 17 Military planning 16 Costs 14 Procurement 14 Military policy 12 more ... Personnel management 12 Airlift, Military 11 Equipment 11 Operational readiness 9 Deployment (Strategy) 8 Foreign service 8 Supplies and stores 8 Weapons systems 8 Air power 7 Command and control systems 7 History 7 Strategic aspects 7 Aeronautics, Military 6 Military relations 6 National security 6 Appropriations and expenditures 5 Computer simulation 5 Defense contracts 5 Defenses 5 Evaluation 5 Management 5 Military doctrine 5 Unified operations (Military science) 5 less ...