A report from the Open Society Initiative for Eastern Africa (OSIEA), and the Africa Governance Monitoring and Advocacy Project (AfriMAP) investigates the vexed question of nationality in the two Sudans. Bronwen Manby’s The Right to a Nationality and the Secession of South Sudan: A commentary on the impact on the new laws argues that the combined effects of the new law on nationality introduced in South Sudan, and amendments made in response by the Republic of Sudan may result in statelessness. The report includes a detailed legal analysis of the two laws, and the impact that they are having on those who were previously Sudanese nationals but whose claim to the nationality of one or other state may now be contested.