State Succession to Territorial Obligations, South Sudan, and the 1959 Nile Waters Agreement
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Emory International Law Review Volume 27 Issue 2 2013 Inheriting International Rivers: State Succession to Territorial Obligations, South Sudan, and the 1959 Nile Waters Agreement Mohamed S. Helal Follow this and additional works at: https://scholarlycommons.law.emory.edu/eilr Recommended Citation Mohamed S. Helal, Inheriting International Rivers: State Succession to Territorial Obligations, South Sudan, and the 1959 Nile Waters Agreement, 27 Emory Int'l L. Rev. 907 (2013). Available at: https://scholarlycommons.law.emory.edu/eilr/vol27/iss2/7 This Article is brought to you for free and open access by the Journals at Emory Law Scholarly Commons. It has been accepted for inclusion in Emory International Law Review by an authorized editor of Emory Law Scholarly Commons. For more information, please contact [email protected]. HELAL GALLEYSPROOFS2 5/1/2014 9:02 AM INHERITING INTERNATIONAL RIVERS: STATE SUCCESSION TO TERRITORIAL OBLIGATIONS, † SOUTH SUDAN, AND THE 1959 NILE WATERS AGREEMENT ∗ Mohamed S. Helal ABSTRACT South Sudan’s independence has increased the number of Nile riparian states to eleven. Unfortunately, the Nile remains without an all-inclusive legal regime to regulate its use and to ensure that this indispensable natural resource is conserved for future generations. What, therefore, are the legal obligations of the newborn Republic of South Sudan regarding the Nile River? Specifically, this Article asks whether the Egyptian-Sudanese Nile Waters Agreement of 1959 has devolved onto South Sudan. This Article looks to the law of state succession to treaties to answer to this question. This is a field of international law that is beset with considerable uncertainty. State practice is inconsistent and scholarly opinion is virtually unanimous that the principal international legal instrument on the matter, the 1978 Convention on State Succession in Respect of Treaties, does not wholly reflect customary international law. To further complicate matters, the process by which South Sudan gained independence makes it difficult to reconcile this case with the structure and logic of the 1978 Convention. Therefore, this Article turns to customary international law to determine the rights and obligations of South Sudan in relation to the Nile River. This Article argues that international law recognizes a special category of treaties that establish territorial obligations. The overwhelming weight of state practice and judicial opinion supports the assertion that these territorial obligations remain unaffected by State † With much gratitude, this Article is dedicated to my academic supervisors at Harvard University: Professor William Alford, Professor Gabriella Blum, and Professor John Gerard Ruggie. The author wishes to thank Jason Robison, Konstantinos Stylianou, and Abdelkhalig Shaib for reading drafts of this Article and providing insightful comments and suggestions. All errors are mine alone. ∗ S.J.D. Candidate (Harvard Law School); LL.M. ’10 (Harvard Law School); Licence en droit ’09 (Ain Shams Law Faculty, Egypt); M.A. in International Human Rights Law ’04 (American University in Cairo); B.A. in Public and International Law ’02 (American University in Cairo). The author is a Second Secretary with the Diplomatic Corps of Egypt. He served on the Cabinet of the Foreign Minister of Egypt from 2005- 2009 and on the Cabinet of the Secretary-General of the Arab League from 2002-2003. All views expressed herein are solely those of the author, and nothing in this article should be read or interpreted as representing the positions of the Government of the Arab Republic of Egypt. HELAL GALLEYSPROOFS2 5/1/2014 9:02 AM 908 EMORY INTERNATIONAL LAW REVIEW [Vol. 27 succession. This Article concludes that, while it is doubtful that South Sudan has succeeded to the 1959 Nile Water Treaty per se, the Nile’s newest riparian is bound by the territorial obligations enshrined therein. This, however, is an unsatisfactory state of affairs. The existing treaties relating to the Nile River are inadequate to meet the many environmental, demographic, and developmental challenges facing the drainage basin. The Nile riparians need to overcome their differences and reach agreement on a comprehensive legal regime to govern the utilization of the watercourse. INTRODUCTION .............................................................................................. 909 I. THE BIRTH OF SOUTH SUDAN ............................................................. 912 II. THE LEGAL REGULATION OF THE UTILIZATION OF THE NILE RIVER WATERS .............................................................................................. 914 A. Pre-1959 Agreements on the Utilization of the Nile Waters ...... 915 B. The 1959 Nile Waters Agreement ............................................... 923 C. Post-1959 Agreements and Arrangements for the Utilization of The Nile River ......................................................................... 931 III. THE LAW OF STATE SUCCESSION TO TREATIES .................................. 934 A. Defining State Succession ........................................................... 934 B. Theories of State Succession to Treaties .................................... 937 1. The Universal Succession Theory ........................................ 937 2. The Tabula Rasa Theory ...................................................... 938 3. The Politics and Practice of State Succession ...................... 939 C. The 1978 Vienna Convention on State Succession in Respect of Treaties ................................................................................... 943 1. The Structure of the 1978 Convention .................................. 944 2. The Status of South Sudan and the Deleted Draft Article 33(3) of the 1978 Convention ............................................... 947 3. Does the 1978 Convention Express Customary International Law? ............................................................... 953 IV. TERRITORIAL OBLIGATIONS, DISPOSITIVE TREATIES, AND STATE SUCCESSION ........................................................................................ 964 A. The Genesis of Territorial Obligations and Dispositive Treaties ....................................................................................... 964 B. State Succession to Territorial Obligations and Dispositive Treaties ....................................................................................... 967 C. The Scope and Content of Obligations Inherited by South Sudan .......................................................................................... 981 CONCLUSION .................................................................................................. 984 HELAL GALLEYSPROOFS2 5/1/2014 9:02 AM 2013] STATE SUCCESSION TO TERRITORIAL OBLIGATIONS 909 INTRODUCTION On July 9, 2011, South Sudan declared independence from the Republic of the Sudan and became the world’s newest state.1 South Sudan also became the eleventh riparian state to share the world’s longest river, the Nile.2 Emerging from Africa’s longest civil war, South Sudan faces immeasurable challenges as it strives to lay the foundations of a peaceful and prosperous nation.3 In addition to boundary disputes with its northern neighbor, conflicts over the use and exploitation of its abundant natural resources, particularly oil and water, could become a serious source of insecurity for the young republic.4 Most scholarly and policy interest has centered on the potential for the outbreak of hostilities between Sudan and South Sudan over oil-related disputes.5 Relatively lesser attention has been paid to the impact the birth of South Sudan has had on the Nile Basin legal regime. The Nile is an ancient river. Since time immemorial, glorious civilizations flourished on its banks and lived off its silt.6 “The Nile is one of the great natural wonders of the world. It flows through every natural formation from towering mountains and well-watered highlands to the most barren of deserts.”7 Today, the Nile continues to provide sustenance to millions of people in its eleven riparian states.8 Unfortunately, South Sudan entered international life at a time of uncertainty for the Nile. As discussed in Part II of 1 See, e.g., South Sudan’s Flag Raised at Independence Ceremony, BBC NEWS (July 9, 2011), http:// www.bbc.co.uk/news/world-africa-14092375. 2 The Nile riparian States are: Burundi, the Democratic Republic of the Congo, Egypt, Eritrea, Ethiopia, Kenya, South Sudan, Sudan, Rwanda, Tanzania, and Uganda.. See Christina Carroll, Past and Future Legal Framework of the Nile River Basin, 12 GEO. INT’L ENVTL. L. REV. 269, 270, 273 (1999). 3 See Crisis Group Africa, Int’l Crisis Group, Politics and Transition in the New South Sudan, at 1–2, Africa Report No.172 (Apr. 4, 2011). 4 See Crisis Group Africa, Int’l Crisis Group, Sudan: Defining the North-South Border, at 1–2, 8, Policy Briefing No.75 (Sept. 2, 2010). 5 Luke Patey, Crude Days Ahead? Oil and the Resource Curse in Sudan, 109 AFR. AFF., 617, 617 (2010); TED DAGNE, CONG. RESEARCH SERV., THE REPUBLIC OF SOUTH SUDAN AND CHALLENGES FOR AFRICA’S NEWEST NATION 18 (2011), available at http://relooney.fatcow.com/SI_FAO-Africa-2012/Sudan_1. pdf; Josh Kron, In 2 Sudans, Familiarity with Path to War, N.Y. TIMES, May 11, 2012, at A4. It should be noted, however, that scholars have pointed to the potential for the outbreak of war over water between Nile riparian States. See, e.g., Joyce Starr, Water Wars, FOREIGN POLICY (Spring 1991)