1. Agreement on the accession of the Republic of Crimea to the Russian Federation. 2014. Moscow, Kremlin, March 18. http://en.kremlin.ru/events/president/news/20604.
2. Al-Jazeera. 2013. “Ukraine Drops EU Plans and Looks to Russia.” November 21.
3. Aljazeera. 2018. “Syria Strikes: All the Latest Updates.” April 15.
4. Arbatov, Alexei G., and Vladimir Dvorkin, ed. 2013. Missile Defense: Confrontation and Cooperation. English version edited by Natalia Bubnova. Moscow: Carnegie Endowment for International Peace.
5. Arms Control Association. 2020. “U.S.-Russian Nuclear Arms Control Agreements at a Glance.” Last updated April 2020. https://www.armscontrol.org/factsheets/USRussiaNuclearAgreements.