| Summary: | Approved for public release; distribution is unlimited === The United Kingdom has signed and ratified the Comprehensive Test Ban Treaty. The United States signed the treaty in September 1996, and currently the decision on whether to ratify it is pending in the Senate. Key differences reside in the political and objective strategic situations of the United States and the United Kingdom. In the United Kingdom's parliamentary system a single party (or a coalition) makes decisions. The United States, however, was designed to have a separation of powers, and this insures that the legislative and executive branches have opportunities for discord as well as cooperation. Currently the United Kingdom has operational weapons production facilities, whereas the United States does not. The United Kingdom has only one nuclear weapons program (the Trident missile) to maintain, whereas the United States has multiple delivery systems and warhead types to maintain. The United Kingdom's nuclear deterrent provides for the country's security needs, yet the United Kingdom is also covered by U.S. nuclear commitments. Indeed, the United States provides xtended deterrence protection for allies and security partners around the world. These responsibilities imply that the implications of the CTBT could be more momentous for the United States than for the United Kingdom
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