 The European Commission against Racism and Intolerance, Advisory Committee on the Framework Convention for the Protection of National Minorities and UN Special Rapporteur on racism Doudou Diène recommend to Estonia simplifying naturalization generally or for the elderly and economically marginalized, as well as encouraging registration of children born in Estonia after 1991 as its citizens.Although not legally permitted, some naturalised Estonian citizens also possess another, e.g., Russian citizenship.According to law, acquiring a foreign citizenship voluntarily and entering into a military or civilian service for another state constitute forfeiture of Estonian citizenship.