Emigration and immigration -- 5 Emigration and immigration 3 Immigrants -- 3 Economic aspects 2 Government policy 2 Government policy -- 2 Aliens, Illegal -- 1 more ... Asians -- 1 Brain drain -- 1 Colonies 1 Colonies -- 1 Congresses 1 Foreign relations 1 History -- 1 Indigenous peoples 1 Minorities -- 1 Multiculturalism -- 1 Refugees -- 1 Refugees, Indo Chinese 1 Refugees, Indochinese -- 1 less ...