Tempering Optimism about Nuclear Deterrence in South Asia

Abstract

This article tempers the argument of deterrence optimists, who make the case that nuclear deterrence has maintained the peace between regional nuclear rivals. In particular, it challenges the assertion by Kenneth Waltz that “nuclear deterrence has passed all of the many tests it has faced” among regional rivals in South Asia. Examining two major regional military crises, this article notes that, first, nuclear deterrence was not the key factor ending these crises. Instead, nonnuclear factors involving American diplomacy, which provided the participants with timely exit strategies, ended the crises. Second, if these crisis-ending factors had not been present, there was a strong possibility of significant military escalation, and nuclear deterrence would not have averted such an escalation. The article concludes by noting that, in regions where deterrence optimism is not well supported, Washington may continue intervening in crises between nuclear rivals, and, anticipating such a U.S. approach, regional rivals could become involved in repeated military crises over the long term.