4. TRIGGERS
1. Dean Acheson, Present at the Creation: My Years in the State Department (New York: W. W. Norton, 1969), p. 36.
2. See David E. Bell, Howard Raiffa, and Amos Tversky, Decision Making: Descriptive, Normative, and Prescriptive Interactions, “Marginal Value and Intrinsic Risk Aversion,” United Kingdom: Cambridge University Press, 1988.
3. “The 1983 War Scare Declassified and For Real,” National Security Archive, https://
4. “Russian Military Incident Tracker,” American Security Project, https://
5. Thomas Gibbons-Neff, “How a 4-Hour Battle Between Russian Mercenaries and US Commandos Unfolded in Syria,” New York Times, May 24, 2018, https://
6. Neil Hauer, “Russia’s Mercenary Debacle in Syria: Is the Kremlin Losing Control?,” Foreign Affairs, February 26, 2018.
7. Natalia Vasilyeva, “Thousands of Russian Private Contractors Fighting in Syria,” Associated Press, December 12, 2017, https://
8. Ellen Nakashima, Karen DeYoung, and Liz Sly, “Putin Ally Said to Be in Touch with Kremlin Before His Mercenaries Attacked US Troops,” Washington Post, February 22, 2018, https://www.washingtonpost.com/world/national-security/putin-ally-said-to-be-in-touch-with-kremlin-assad-before-his-mercenaries-attacked-us-troops/2018/02/22/f4ef050c-1781-11e8-8b08-027a6ccb38eb_story.html?utm_term=.033a4cd8fba2.
9. John Lewis Gaddis, The Long Peace: Inquiries into the History of the Cold War (New York: Oxford University Press, 1989).
10. James M. Acton, “Escalation Through Entanglement: How the Vulnerability of Command-and-Control Systems Raises the Risks of an Inadvertent Nuclear War,” International Security 43, no. 1 (2018): pp. 56–99.
11. Acton, p. 62.
12. US Department of Defense, Nuclear Posture Review (Washington, D.C.: US Department of Defense, 2018), p. 21, https://
13. Acton, “Escalation Through Entanglement,” p. 56.
14. Alexey Arbatov, Vladimir Dvorkin, and Petr Topychkanov, “Entanglement as a New Security Threat: A Russian Perspective,” in Entanglement: Russian and Chinese Perspectives on Non-Nuclear Weapons and Nuclear Risks, ed. James M. Acton (Washington, D.C.: Carnegie Endowment for International Peace, 2017), p. 13.
15. Polit Navigator, “Kalashnikov Called for Supporting Donbass with Weapons,” October 13, 2008, https://
16. Andy Greenberg, “The Untold Story of NotPetya, the Most Devastating Cyberattack in History,” Wired, August 22, 2018, https://
17. Dan Glass, “What Happens If GPS Fails?,” Atlantic, June 13, 2016, https://