Politics and government 13 History 6 Armed Forces 5 Economic conditions 4 Political activity 4 Economic policy 3 Social conditions 3 Civil service 2 Civil service reform 2 Foreign relations 2 Guerrilla warfare 2 Industries 2 Nationalism 2 Amazon River Region 1 Brazil 1 Centro de Instruȯ de Guerra na Selva (Brazil) 1 Civil-military relatuons 1 Descriptions and travel 1 Dissertations, Academic 1 Economic condition 1 Economic development 1 Education and state 1 Educational sociology 1 Foreign relations administration 1 Geography 1 Guerrila 1 Guerrillas 1 Jungle warfare 1 Juvenile literature 1 National security 1