Amid great-power competition and more intricate global interdependence, sovereignty is increasingly practised as a security function performed through calibrated alignments that protect territorial integrity, diplomatic agency, and economic resilience. This article synthesizes structural realism and securitization theory to argue that sovereign robustness today hinges on the collective safeguarding of non-traditional domains – trade, energy, transport, and data – alongside classic defence concerns. The dynamics are especially visible in Southwest and Central Asia, where states advance multi-vector strategies that emphasize non-interference, sovereign equality, and pragmatic connectivity. Using Pakistan as a focal case, the analysis shows how corridor development (e.g. the China-Pakistan Economic Corridor), regional platforms (e.g. the Shanghai Cooperation Organization), and logistics innovations (e.g. National Logistics Cell’s feeder shipping and Gulf-Central Asia cargo services) can translate geo-economics into ‘connectivity security’ without contravening regional red lines. The article concludes that sustainable sovereignty in Eurasia’s interior increasingly rests on a cooperative securitization of connectivity, treating shared infrastructure as stabilizing public goods rather than zero-sum prerogatives.