The Interplay between the Indus Waters Treaty and Nuclear Deterrence Stability in South Asia

Abstract

The relationship between water security and nuclear deterrence has become increasingly significant in South Asia, where India and Pakistan remain engaged in one of the world's most enduring strategic rivalries. The Indus Waters Treaty (IWT), signed in 1960 under the mediation of the World Bank, has historically functioned as one of the few successful confidence-building mechanisms between the two nuclear-armed neighbors. Despite wars, border crises, and diplomatic breakdowns, the treaty survived for over six decades. However, recent political developments, including India's 2025 decision to suspend its participation in the treaty following renewed bilateral tensions, have raised serious concerns regarding the future of regional stability. This article examines the relationship between the Indus Waters Treaty and nuclear deterrence stability by exploring how water disputes interact with strategic deterrence, security dilemmas, and crisis escalation. Using qualitative analysis based on international relations theories, the study argues that the weakening of the treaty not only threatens water security but also increases strategic uncertainty, thereby undermining deterrence stability. The article concludes that preserving institutional cooperation over shared water resources is essential for maintaining strategic stability and preventing future conflicts in South Asia.