William d'Ambruoso is a visiting assistant professor in the Government and Legal Studies Department at Bowdoin College. He has a PhD in Political Science from the University of Washington.
Is nuclear deterrence eroding? Recent developments in international affairs and military technology lead some analysts to conclude the nuclear revolution, which purportedly prevents war between nuclear powers, no longer has much effect. They say the world is getting safer for nuclear war or conventional war beneath the nuclear umbrella, which makes it likely that states, starting with China, will test U.S. commitments to fight for their allies. This paper argues these conclusions are wrong. Using recent cases that some claim are evidence of deterrence failure—Russia’s invasion of Ukraine and the 2017 “fire and fury” crisis between the United States and North Korea—it demonstrates that nuclear deterrence remains robust.
