Economic aspects Defenses -- 5 Emigration and immigration -- 4 Economic aspects -- 3 Islam -- 3 Appropriations and expenditures 2 Economics -- 2 more ... Environmental aspects 2 Islam 2 National security -- 2 Political science -- 2 Politics and government -- 2 Religious aspects -- 2 Social aspects 2 Aliens, Illegal -- 1 Armed forces -- 1 Arms race 1 Case studies 1 Cities and towns -- 1 Commercial policy -- 1 Communication -- 1 Cost control 1 Cost control -- 1 Costs 1 Creative ability -- 1 Disaster relief -- 1 Economic condition 1 Economic conditions 1 Economic development -- 1 Ethics relations -- 1 less ...