Emigration and immigration 8 Social aspects 4 Government policy 3 Politics and government 3 Security, International 3 Spain 3 Foreign relations 2 更多 ... Relations 2 Strategic aspects 2 Acculturation 1 Armed Forces 1 Asians 1 Civil rights 1 Civil service 1 Cultural pluralism 1 Decentralization in government 1 Democratization 1 Drug control 1 Economic aspects 1 Economic conditions 1 Economic integration 1 Education 1 Educational equalization 1 Emigration and immigration law 1 Globalization 1 Government relations 1 Hydrocarbon reservoirs 1 Indians 1 Integrated water development 1 Intercultural communication 1 少 ...