Revisiting the case for no first use of nuclear weapons Peace by Nick Youngson CC BY-SA 3.0 Alpha Stock Images Editor’s note: This article is adapted from a presentation the author gave at an international webinar hosted by the Geneva Centre for Security Policy and Parliamentarians for Nuclear Non-proliferation and Disarmament on 29 April 2021. No first use is back on the global nuclear weapons campaign agenda, supported internationally by organizations like Global Zero and Parliamentarians for Nuclear Non-Proliferation and Disarmament. The issue has also been given new life in the United States by the election of an evidently sympathetic President Biden and the reintroduction into Congress by Senator Elizabeth Warren and Representative Adam Smith of their No First Use Act. Although the case for no first use has been well made before by Scott Sagan, Morton Halperin, and others, including Ramesh Thakur and John Holdren in this journal, it is timely, accordingly, to revisit the arguments that make it so compelling a policy choice.