PERSISTENT INSTABILITY ALONG THE PAKISTAN-AFGHANISTAN BORDER: EXPLAINING REGIONAL SECURITY SPILLOVER THROUGH AN INTEGRATED ANALYTICAL FRAMEWORK

Abstract

The Pakistan-Afghanistan border is a strategically sensitive region that has been a source of tension despite multiple military operations, ceasefires, and diplomatic efforts. The deterioration of Pakistan's security environment following the Taliban's return to power in Afghanistan in 2021, marked by renewed militant activity, illustrates the region's continuing vulnerability to instability. The perspective on the sources of tension along the Pakistan-Afghanistan border has been dominated by state-centric and securitized approaches while regional processes and non-state actors’ role in the protracted violence have received limited theoretical and empirical attention. This paper examines the causes of persistent insecurities along the Pakistan-Afghanistan border and analyze why previous attempts to stabilize the area have yielded limited results. A qualitative study was conducted utilizing a documentary analysis method. Reports, policy briefs, official documents, and relevant academic literature were reviewed to produce the present investigation’s final results. An integrated conceptual framework was applied consisting of Securitization Theory, Borderlands Theory, and Spillover Theory to explain the interaction between securitized state responses, fragmented border governance, and regional spillover. The research findings suggest that the causes of insecurity are multifaceted and complexThe findings indicate that insecurity is driven by multiple interrelated factors rather than a single cause. Weak border governance, the transnational movement of terrorist groups, and regional instability originating in Afghanistan interact to sustain persistent tensions along the Pakistan–Afghanistan border. Despite Pakistan’s efforts to strengthen border defenses and counterterrorism activities, the military actions, cease-fire agreements, and diplomatic interventions only serve to mitigate the symptoms of the conflict rather than its underlying causes. The study concludes that both the Securitization Theory and the Borderlands Theory are useful in understanding the phenomenon, but the Spillover Theory provides a more complete understanding of the situation at the Pakistan-Afghanistan border. By integrating Securitization Theory, Borderlands Theory, and Spillover Theory into a single analytical framework, this study offers a more comprehensive explanation of persistent insecurity along the Pakistan-Afghanistan border and contributes to the literature on border governance, regional security, and conflict spillover.