Answer: Turkey
Notes: On July 22, 2025, Turkey unveiled its first hypersonic ballistic missile, named Tayfun Block-4, in Istanbul. The launch took place on the opening day of the International Defense Industry Fair (IDEF) 2025. Tayfun Block-4 is the hypersonic version of Turkey’s longest-range indigenous missile, Tayfun. “Hypersonic” means it travels at least five times the speed of sound, or Mach-5. It was developed by Turkish defense company Roketsan. It uses a GPS (Global Positioning System), GLONASS (Global Navigation Satellite System), and INS (Inertial Navigation System) for guidance.
