A couple of interesting notes regarding waters where the Coast Guard frequently operates, both concerning Nicaragua. First they seem to be getting drug enforcement intelligence from the Russians, and the US does not mind. Second they are getting six vessels from the Russians, that may be usable for law enforcement or for possible sovereignty patrols over their newly expanded EEZ.
Two of these ships are 550 ton ASUW and AAW missile equipped Molniya Class Corvettes like the one pictured above, a development of the older Turantul Class Corvette. The other four are closer to 110 foot WPBs, if a bit more heavily armed.
Costa Rica is apparently concerned. I’ve got a soft spot for Costa Rica. Their only armed service is their Coast Guard, and they have had some run-ins with Nicaragua in the past.