Emergency management Disaster relief 175 Disasters 125 Natural disasters 106 Crisis management 88 Prevention 83 Terrorism 77 more ... Government policy 65 Planning 62 Risk management 61 Social aspects 53 Risk assessment 49 Disaster medicine 48 Civil defense 45 Hurricane Katrina, 2005 45 Safety measures 45 Emergency medical services 44 Hazard mitigation 42 Security measures 41 National security 37 Public health 35 Management 33 Business planning 32 Climatic changes 31 Health aspects 27 History 27 Preparedness 26 Economic aspects 24 Evaluation 23 Medical emergencies 23 less ...