On September 30, North Korea successfully flight tested a new surface-to-air missile (SAM), according to an announcement released by state media. The launch reportedly demonstrated the new missile’s “twin-rudder control technology” and “double-impulse flight engine,” along with improvements to responsiveness and guidance accuracy. North Korea conducted its last known test of a SAM, an older system named the Pon’gae-5 (KN-06), in 2017.