CIMSEC – The strategic imperatives facing the United States, Japan, and South Korea demand immediate, decisive action to secure enduring maritime security across the Indo-Pacific. Trilateral collaboration in naval shipbuilding is no longer optional, it is necessary. Together, the alliance has a once-in-a-generation opportunity to counter China’s expanding naval power, restore American shipbuilding strength, and ensure a free and open Indo-Pacific for decades to come. By pooling resources, expertise, and industrial capacity, the alliance can design and produce a fast-attack missile corvette tailored to the region’s urgent needs: maritime domain awareness, deterrence, and enhanced interoperability among allies and partners. A corvette fleet, built with Asian shipyards and American innovation, will empower ASEAN partners on the frontlines of maritime coercion, illegal activities, grey-zone conflict, and Great Power Competition.