The Aug. 20 barrage on Kyiv killed at least 16 and exposed the gap between Russia's ballistic missile salvos and the Patriot interceptor production needed to stop them.
North Korea is supplying the one class of weapon Ukraine can no longer intercept, and Pyongyang collects performance feedback from every Russian launch.
Kyiv's defenses stopped 90 percent of the cruise missiles and drones in Russia's 11-hour barrage. The ballistic missiles that got through are a delivery problem: interceptors Ukraine already bought have not arrived.
Russia's most modern nuclear attack submarine — a multirole SSGN carrying Kalibr, Oniks, and Zircon cruise missiles in vertical silos, and the quietest Russian submarine design to date, assessed as comparable to US Seawolf/Virginia generation.
Russia's most modern surface combatant — a multirole frigate built around long-range precision strike with Kalibr and Zircon hypersonic missiles, and the anchor of its future surface fleet.