An interesting Wiki bio.
To the point of the article. Seems the Korean Commies had acquired some Rooskie missile stuff (finite quantity) and are probably not able to reproduce enough of the good or better stuff they need?
Israel tried to buy out the inventory, they sold some to Iran, The Toon tried to buy them off.
They might be on their final inventory and are making one last effort at extortion?
Today they blew of four of what are being called short range ship killers.
yitbos
It would be dangerous to pin our hope that their inventory is about to run out and no new ones under production.