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History of the Comprehensive Nuclear Test Ban Treaty (CTBT)

Background
Arms control advocates had campaigned for the adoption of a treaty banning all nuclear explosions since the early 1950s, when public concern was aroused as a result of radioactive fall-out from atmospheric nuclear tests and the escalating arms race.
Over 50 nuclear explosions were registered between 16 July 1945, when the first nuclear explosive test was conducted by the United States at Alamogordo, New Mexico, and 31 December 1953.

Prime Minister Nehru of India voiced the heightened international concern in 1954, when he proposed the elimination of all nuclear test explosions worldwide.
However, within the context of the cold war, scepticism in the capability to verify compliance with a comprehensive nuclear-test ban-treaty posed a major obstacle to any agreement.

Partial Test Ban Treaty, 1963
Limited success was achieved with the signing of the Partial Test Ban Treaty in 1963, which banned nuclear tests in the atmosphere, underwater and in space. However, neither France nor China, both nuclear weapon States, signed the PTBT.

Non-proliferation Treaty, 1968
A major step towards the non-proliferation of nuclear weapons came with the signing of the Nuclear Non-proliferation Treaty (NPT) in 1968. Under the NPT, non-nuclear weapon States were prohibited from, inter alia, possessing, manufacturing or acquiring nuclear weapons or other nuclear explosive devices. All signatories were committed to the goal of nuclear disarmament.

Negotiations for the CTBT
Given the political situation prevailing in the subsequent decades, little progress was made in nuclear disarmament until 1991. Parties to the PTBT held an amendment conference that year to discuss a proposal to convert the Treaty into an instrument banning all nuclear-weapon tests; with strong support from the UN General Assembly, negotiations for a comprehensive test-ban treaty began in 1993.

Adoption of the CTBT, 1996
Intensive efforts were made over the next three years to draft the Treaty text and its two annexes. It was opened for signature in New York on 24 September 1996, when it was signed by 71 States, including the five nuclear-weapon States, culminating in the adoption of the Comprehensive Test Ban Treaty. The United States was the first nation to sign the CTBT. The CTBT also establishes a global monitoring network called the International Monitoring System (IMS) and provides for the option of short-notice on-site inspections to detect and deter cheating.

The U.S. Senate declined to give its advice and consent to ratification when it briefly considered the CTBT in October 1999. Many Senators who voted "no," including Maine Senators Snowe and Collins, expressed concerns about the complicated technical challenges of verification and the ability of the United States to maintain its arsenal without testing. Since then, significant advances in test ban monitoring, and the nuclear weapons stockpile stewardship program, address many of the concerns expressed during the first Senate debate.

In recent years, international support for the CTBT has grown. An increasing array of Republican and Democratic national security leaders including former Secretaries of State George Shultz and Henry Kissinger, former Secretary of Defense William Perry, and former National Security Advisor General Brent Scowcroft have all endorsed U.S. ratification of the CTBT.

On April 5, 2009, President Barack Obama said: "To achieve a global ban on nuclear testing, my administration will immediately and aggressively pursue U.S. ratification of the Comprehensive Test Ban Treaty. After more than five decades of talks, it is time for the testing of nuclear weapons to finally be banned."

There is neither the need nor the political support for renewed U.S. nuclear weapons testing, and it is in the national security interest of the U.S. to ratify the CTBT to prevent nuclear weapons testing by others.

As of 2011, the CTBT has not been ratified by the US, China, Egypt, India, Indonesia, Iran, Israel, North Korea and Pakistan.

Peace Action Maine

The state’s largest peace organization has worked for 25 years to promote peace through grassroots organizing, citizen education, and issue advocacy.

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