International relations Political control & freedoms Warfare & defence Military history 9 Peace studies & conflict resolution 4 Diplomacy 3 European history 3 International institutions 3 History of other lands 2 Politics & government 2 Anthropology 1 Asian history 1 Central government policies 1 Elections & referenda 1 Espionage & secret services 1 Ethical issues & debates 1 Feminism & feminist theory 1 Gender studies, gender groups 1 Non-governmental organizations (NGOs) 1 Political structures: democracy 1 Public administration 1 Social research & statistics 1 Sociology 1