The security architecture of the Caribbean faces significant challenges amid intensifying tensions between Venezuela and the United States, which undermine collective and unified responses by the member states of CARICOM IMPACS. The organization is not only divided between supporting US policies and advocating for non-interference and regional solidarity, but is also characterized by an implementation deficit in the context of the development of the regional security architecture. This inertia has existed since the establishment of the CARICOM IMPACS in 2006. Based on elite interviews with military stakeholders across the Caribbean region, this study examines the impact of these tensions on the Caribbean’s security frameworks and highlights the urgent need for a recalibrated, adaptive regional security strategy. Such a strategy must address multidimensional threats while promoting resilience and collaboration over the sovereign interests of member states. Strengthening collective security is critical to safeguarding peace, stability, and sustainable development in the region amid external pressures and internal divisions.