So there are FOUR of them either launched or under construction as of now right? My understanding is that another DDG was started at Nampo too after Choe Hyon's launch. I was speculating elsewhere that if the construction rate is maintained (roughly 1 DDG per shipyard per year), they could have as much as a dozen of them in the water by 2030 (!). They probably don't need that many, plus they also want to build "cruisers" too, but still it looks like a major surface fleet expansion in both numbers and especially capability is inevitable. This not even touching on the expected SSBN building program.