Executive Summary BLUF: The successful 15-hour, 14,000-kilometer flight test of Russia’s 9M730 Burevestnik (NATO: SSC-X-9 Skyfall) on October 21, 2025, confirms the technical viability of a direct-cycle air-breathing nuclear propulsion system. This milestone shifts the system from an experimental prototype to a weapon scheduled for deployment by 2027. Over the next 5 years (2026–2031), the … Leggi tutto 9M730 Burevestnik 5-Year Outlook: Strategic Nuclear Risks