Pakistan-Saudi Mutual Defense Pact: Implications for Gulf-South Asia Security in Multipolarity

Abstract

The 2025 Strategic Mutual Defense Agreement (SMDA) between Pakistan and Saudi Arabia represents a pivotal transformation in regional security architecture, transitioning decades of informal military cooperation into a formalized collective defense framework. This comprehensive analysis examines the historical foundations, strategic motivations, and multifaceted implications of this landmark agreement. The study explores how the SMDA reflects broader patterns of multipolarity in international relations, as regional powers increasingly seek security arrangements independent of traditional Western-led alliances. Through the lens of neorealist theory and regional security complex frameworks developed by Buzan and Wæver (2003), this paper analyzes the agreement's impact on nuclear proliferation dynamics, its implications for key stakeholders including the United States, China, Iran, and India, and its potential to reshape the geopolitical landscape of South Asia and the Middle East. The research demonstrates that the SMDA is not merely a bilateral defense pact but a strategic recalibration that could fundamentally alter regional power balances, influence energy security calculations, and establish new paradigms for Muslim-majority nations seeking collective security in an increasingly uncertain global order.