A “Nuclear Umbrella” for Ukraine? Precedents and Possibilities for Postwar European Security
Journal: International Security
Year: 2024

Abstract Whatever the outcome of the Russo-Ukrainian War, in its wake Ukraine will need to choose a security policy to defend its sovereignty from future threats. Its choice holds implications for broader European security. Some observers advocate Ukraine becoming a member in the North Atlantic Treaty Organization (NATO), thereby gaining protection from the U.S. “nuclear umbrella.” Others doubt the effectiveness of “extended nuclear deterrence”—the threat of U.S. nuclear retaliation for attacks,