Arms Control and Nonproliferation

Joe Biden stands in front of a photograph of Vladimir Putin in Washington, DC, on June 22, 2022. (Drew Angerer/Getty Images)

A B-1B Lancer taxis on the flightline at Dyess Air Force Base in Texas, on January 11, 2022. (US Air Force photo by Airman 1st Class Ryan Hayman)

People watch a television screen showing a file image of a North Korean missile launch at the Seoul Railway Station on August 17, 2022, in Seoul, South Korea. (Chung Sung-Jun/Getty Images)

Vladimir Putin at the Kremlin on September 30, 2022. (Kremlin)

Russian President Vladimir Putin gives a speech during a ceremony formally annexing four regions of Ukraine at the Kremlin on September 30, 2022. (Gavriil Grigorov/Sputnik/AFP via Getty Images)

A member of the Komala opposition party stands in the remains of what used to be its headquarters. Iranian missiles and drones struck multiple headquarters of Kurdish opposition groups in the KRI on September 28, 2022, in Sulaymaniyah, Iraq. (Hawre Khalid/Getty Images)

Russian President Vladimir Putin has warned that Moscow might use nuclear weapons if the West attacks Russian territory. (PHOTO: GAVRIIL GRIGOROV/KREMLIN/ASSOCIATED PRESS)

A picture taken on November 10, 2019, shows an Iranian flag in Iran's Bushehr nuclear power plant, during an official ceremony to kick-start works on a second reactor at the facility. Bushehr is Iran's only nuclear power station and is currently running on imported fuel from Russia that is closely monitored by the UN's International Atomic Energy Agency. (Photo by ATTA KENARE/AFP via Getty Images)

An F-35B Lightning II lands on the flight deck aboard amphibious assault carrier USS Tripoli in the Philippine Sea on September 12, 2022. (US Navy Photo by Malcolm Kelley)

Iranian President Ebrahim Raisi in Ilam on May 3, 2017. (Wikimedia Commons)