is open to states with dependent territories in the zone and obligates them to observe certain provisions of the Treaty with respect to these territories; only Spain and France may become Parties to it. The United Kingdom, France, the Russian Federation and China have signed and ratified the Protocols, but the United States has yet to ratify. Spain has neither signed nor ratified Protocol III. The United States has supported the concept of the denuclearization of Africa since the first United Nations General Assembly resolution on this issue in 1965 and has played an active role in drafting the final text of the Treaty and Protocols. The United States signed Protocols I and II in 1996, but has not ratified them. In May 2010, U.S. Secretary of State Hillary Clinton announced that the Obama Administration would submit these protocols to the U.S. Senate for advice and consent to ratification. The status of the Indian Ocean island of Diego Garcia, controlled by the United Kingdom and used as a military base by the United States, with regard to the Treaty is unclear. Diego Garcia is part of the Chagos Archipelago claimed by Mauritius. The other islands of the Chagos Archipelago are considered in Africa and are under the treaty, but neither the United States nor the United Kingdom recognizes Diego Garcia as being subject to the Treaty. Enforcement To allow for the verification of its nuclear non-proliferation undertaking, the Treaty requires parties to conclude comprehensive safeguards agreements with the IAEA equivalent to the agreements required in connection with the Treaty on the Non-Proliferation of Nuclear Weapons (NPT). Twenty-one States in Africa have yet to bring such agreements into force. The IAEA encourages them to bring these agreements into force as soon as possible. According to Article 12 (Mechanism for compliance) of the Treaty, after entry-into-force, the Parties agree to establish an African Commission on Nuclear Energy (AFCONE). In addition to being a compliance mechanism, the Commission will be responsible for encouraging regional and sub-regional programmes for co-operation in the peaceful uses of nuclear science and technology. The establishment of AFCONE would also: encourage African states to take responsibility for their natural resources, and in particular nuclear material; and protect against the dumping of toxic waste. References External links Text of African Nuclear Weapons Free Zone Treaty African Nuclear Weapons Free Zone Treaty, United States Department of State African Nuclear Weapon Free