Digital Resilience and National Defense

Digital communication networks have gradually evolved from a technical infrastructure into a foundational component of modern economic systems. Financial transactions, cloud computing services, digital logistics platforms, and public administration increasingly depend on continuous data exchange across international networks. As a result, the resilience of digital connectivity infrastructure has become closely intertwined with both economic stability and national security. The paper examines the vulnerability of international connectivity networks to geopolitical disruptions through an integrated analytical framework combining network topology analysis, congestion modeling, probabilistic cable failure simulation, and econometric estimation. The methodology integrates network topology modeling, latency propagation analysis, congestion dynamics, Monte Carlo submarine cable failure simulation, and econometric modeling of ASEAN digital economic performance. The results indicate that disruptions in the Middle East submarine cable corridor could double routing distance between Southeast Asia and Europe, increasing latency beyond 400 milliseconds. Econometric results show that higher international network latency significantly reduces digital economic output. The study proposes the Indonesia Digital Defense Network (IDDN) architecture to enhance connectivity resilience. Together, these findings underline the strategic role of resilient connectivity infrastructure in sustaining both economic stability and national security in the digital era.