1. Z. KECK, “Nuclear Weapon Stockpiles: Past and Present,” The Diplomat, September 2, 2013.
2. “Interim Agreement Between the United States of America and the Union of Soviet Socialist Republics on Certain Measures with Respect to the Limitation of Strategic Offensive Arms,” (1969); https://2009-2017.state.gov/t/isn/4795.htm.
3. “Treaty Between the United States of America and the Russian Federation on Strategic Offensive Reductions,” SORT/Treaty of Moscow (2003).
4. “Treaty Between the United States of America and the Russian Federation on Measures for the Further Reduction and Limitation of Strategic Offensive Arms” (2011); https://www.congress.gov/treaty-document/111th-congress/5/resolution-text.
5. “Countries: United States,” International Panel on Fissile Materials (Apr. 29, 2021); http://fissilematerials.org/countries/united_states.html.