261. Nuclear Verification’s Holy Grail: Verifying Nuclear Warheads — a new approach
- Author:
- Miles Pomper, William Moon, Marshall Brown, Ferenc Dalnkoki-Veress, Dan Zhukov, Dick Gullickson, and Yanliang Pan
- Publication Date:
- 12-2024
- Content Type:
- Working Paper
- Institution:
- Nonproliferation Policy Education Center
- Abstract:
- This study is the culmination of four years of work to think through what would be required to track and monitor nuclear warheads in a verification process. It first began in 2021, shortly after President Joe Biden of the United States and President Vladimir Putin of Russia extended the New START Treaty until February 2026; the two presidents also announced the launch of bilateral strategic stability talks. This positive moment in the U.S.-Russian relationship, which became almost unimaginable after the 2022 Russian invasion of Ukraine, was the original impetus for the project. It also launched in the aftermath of the U.S. withdrawal from the Treaty Between the United States of America and the Union of Soviet Socialist Republics on the Elimination of Their Intermediate-Range and Shorter-Range Missiles, commonly known as the INF Treaty. The Russians had been violating the Treaty with the production and deployment of the 9M729 missile, also known in NATO parlance as the SSC-8. All NATO allies concurred with the withdrawal, which the United States completed in August 2019. The effort began with two strands of activity. The study team knew that when the United States and Russia decided to return to the negotiating table, the United States would place a high priority on seeking direct limits on warheads. Prior treaties had focused on controlling and eliminating missiles but had not focused directly on the warheads that armed them. It had long been a goal of the United States to seek direct limits on warheads, in order to more accurately constrain a Russian preponderance in warheads designated for theaterand shorter-range systems.1 However, if such an agreement were negotiated, the European allies would be ill-equipped to participate. On-site inspections under the INF Treaty had ended on May 31, 2001, so it had been twenty years since the allies had had to participate in verification activities. Most had lost expertise and institutional memory; some had never participated at all. “Raising the IQ” of the NATO allies about participating in arms control implementation was thus the first strand of activity. The second strand grew up around a conviction in the study team that the well-practiced verification techniques that had been exercised in INF and strategic arms control treaties since the 1980s could be augmented with new technology and innovative techniques. Thus emerged the emphasis on using cryptography to underpin a unique warhead tracking system. This work took advantage of some of the finest experts in the field of cryptography at Stanford University, and also the extensive experience gained during the Defense Threat Reduction Agency’s many years of work to strengthen warhead protection, control and accounting in Russian Ministry of Defense nuclear warhead storage facilities. This work, which spanned a period of over fifteen years from 1995- 2013, provided the study team with a great depth of knowledge about the normal operating procedures in Russian military warhead facilities. This deep knowledge was vital to developing a concept for the tracking system, providing it with a realism and accuracy that otherwise would not have been possible. These two strands of work culminated in 2022 in a significant study, “Everything Counts: Building a Control Regime for Non-Strategic Nuclear Warheads in Europe.”2 However, the team realized that only one element of warhead verification had been touched—the broad outlines of a system for maintaining and exchanging information over the life of an agreement. Other verification elements such as on-site inspections and particular verification technologies had not been considered. They therefore resolved to expand the scope of work to imagine an entire closed system for nuclear warhead verification. With the cryptographic element as its foundation, the team reviewed the extensive experience of treaties, agreements and other activities such as exhibitions and joint experiments that had been built up over the many years of U.S.-Soviet and Russian cooperation on nuclear weapons control. From this, they created a comprehensive menu of measures that could be considered for a future warhead control regime, calibrating the measures according to the level of their intrusiveness.
- Topic:
- Arms Control and Proliferation, Nuclear Weapons, and Nonproliferation
- Political Geography:
- Russia and United States of America