Oerlikon Skyshield Integration in Indonesia's Layered Architecture: The Politics of Interoperability, Defense Governance, and Deterrence

Abstract

Indonesia's layered air defense architecture requires interoperable systems that integrate local sensors and weapon systems with national command-and-control networks. However, the acquisition of advanced defense platforms does not automatically translate into integrated operational capabilities. This study examined how technical interoperability, organizational capacity, and defense governance influenced the strategic role of the Oerlikon Skyshield air defense system within Indonesia's layered air defense architecture. A qualitative case study approach was employed, drawing on semistructured interviews with Indonesian Air Force personnel, documentary evidence, and relevant scholarly literature. Data were analyzed through data condensation, data display, and conclusion drawing and verification, supported by thematic coding. Source and methodological triangulation were applied to strengthen the credibility of the findings. The results identified three principal barriers: inadequate data communications infrastructure, limited personnel competencies in communications systems and cybersecurity, and insufficient middleware capabilities to standardize data exchange with the Indonesian National Air Operations Command (Komando Operasi Udara Nasional, Koopsudnas). These constraints limited shared air situational awareness and external target cueing, restricting Skyshield's operational role primarily to local point defense rather than enabling its full integration as a node within the national air defense network. The findings further indicated that these interoperability challenges were associated with fragmented institutional responsibilities for systems integration, procurement dependencies, and limitations in defense policy implementation capacity. The study concluded that air defense modernization should prioritize architecture-centered defense governance, clearly defined interoperability requirements throughout procurement and system life-cycle management, periodic integration testing, specialized personnel development, and technology transfer focused on systems integration capabilities. These measures could strengthen coordinated air defense operations, enhance deterrence by denial, and support Indonesia's strategic autonomy, although their operational effectiveness would require further technical validation.