New START Treaty: Central Limits and Key Provisions

The Obama Administration and outside analysts argued that New START strengthens strategic stability and enhances U.S. national security. Critics, however, questioned whether the treaty would serve U.S. national security interests because, they argued in 2010, Russia was likely to reduce its forces with or without an arms control agreement and because the United States and… Continue Reading New START Treaty: Central Limits and Key Provisions

U.S. Strategic Nuclear Forces

Even though the United States has reduced the number of warheads deployed on its long-range missiles and bombers, consistent with the terms of the 2010 New START Treaty, it is also developing new delivery systems for deployment over the next 10-30 years. Congress will review plans for U.S. strategic nuclear forces during the annual authorization… Continue Reading U.S. Strategic Nuclear Forces

Hypersonic Weapons

  The United States has actively pursued the development of hypersonic weapons—maneuvering weapons that fly at speeds of at least Mach 5—as a part of its conventional prompt global strike program since the early 2000s. In recent years, the United States has focused such efforts on developing hypersonic glide vehicles, which are launched from a… Continue Reading Hypersonic Weapons

New START Treaty: Central Limits and Key Provisions

The United States and Russia signed the New START Treaty on April 8, 2010. After more than 20hearings, the U.S. Senate gave its advice and consent to ratification on December 22, 2010, by a vote of 71-26. Both houses of the Russian parliament—the Duma and Federation Council—approved the treaty in late January 2011 and it… Continue Reading New START Treaty: Central Limits and Key Provisions

Arms Control and Nonproliferation: A Catalog of Treaties and Agreements – March 2020 Edition

Arms control and nonproliferation efforts are two of the tools that the United States has occasionally used to implement its national security strategy. Although some believe these tools do little to restrain the behavior of U.S. adversaries, while doing too much to restrain U.S. military forces and operations, many others see them as an effective… Continue Reading Arms Control and Nonproliferation: A Catalog of Treaties and Agreements – March 2020 Edition

Russia’s Nuclear Weapons: Doctrine, Forces and Modernization

Russia’s nuclear forces consist of both long-range, strategic systems—including intercontinental ballistic missiles (ICBMs), submarine-launched ballistic missiles (SLBMs), and heavy bombers—and shorter- and medium-range delivery systems. Russia is modernizing its nuclear forces, replacing Soviet-era systems with new missiles, submarines and aircraft while developing new types of delivery systems. Although Russia’s number of nuclear weapons has declined… Continue Reading Russia’s Nuclear Weapons: Doctrine, Forces and Modernization

Russia’s Nuclear Weapons: Doctrine, Forces, and Modernization

  Russia’s nuclear forces consist of both long-range, strategic systems – including intercontinental ballistic missiles (ICBMs), submarine-launched ballistic missiles (SLBMs), and heavy bombers – and shorter- and medium-range delivery systems. Russia is modernizing its nuclear forces, replacing Soviet-era systems with new missiles, submarines and aircraft while developing new types of delivery systems. Although Russia’s number… Continue Reading Russia’s Nuclear Weapons: Doctrine, Forces, and Modernization

New START Treaty: Central Limits and Key Provisions

      The United States and Russia signed the New START Treaty on April 8, 2010. After more than 20 hearings, the U.S. Senate gave its advice and consent to ratification on December 22, 2010, by a vote of 71-26. Both houses of the Russian parliament—the Duma and Federation Council— approved the treaty in… Continue Reading New START Treaty: Central Limits and Key Provisions

Iran’s Nuclear Program: Status

Iran’s nuclear program began during the 1950s. The United States has expressed concern since the mid-1970s that Tehran might develop nuclear weapons. Iran’s construction of gas centrifuge uranium enrichment facilities is currently the main source of proliferation concern. Gas centrifuges can produce both low-enriched uranium (LEU), which can be used in nuclear power reactors, and… Continue Reading Iran’s Nuclear Program: Status

Iran’s Nuclear Program: Tehran’s Compliance With International Obligations

Several U.N. Security Council resolutions adopted between 2006 and 2010 required Iran to cooperate fully with the International Atomic Energy Agency’s (IAEA’s) investigation of its nuclear activities, suspend its uranium enrichment program, suspend its construction of a heavy-water reactor and related projects, and ratify the Additional Protocol to its IAEA safeguards agreement. However, Tehran has… Continue Reading Iran’s Nuclear Program: Tehran’s Compliance With International Obligations