Reported and explained here:
The leased U.S. Navy catamaran Swift -- "High Speed Vessel" in milspeak -- is headed to Latin America to test the Navy's new "Global Fleet Station" concept, which envisions transport ships acting as miniature sea bases, hauling and supporting contingents of engineers, boat crews, civil affairs specialists and doctors, all specializing in stabilizing and rebuilding failing states.
Navy Press Release here. Photo caption:
High Speed Vessel (HSV) 2 Swift, along with Commander Task Group 40.9, is deploying as part of the Global Fleet Station (GFS) pilot to the Caribbean Basin and Central America. This deployment is designed to analyze the GFS concept for the Navy, by enhancing cooperative partnerships with regional maritime services and improving operational readiness for the participating partner nations. U.S. Navy photo by Mass Communication Specialist 2nd Class Holly Boynton