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South Korea's Hyundai-Rotem Corporation unveiled the K3 next-generation main battle tank at a defense expo in Poland in September 2025. Featuring advanced capabilities such as a hydrogen-powered propulsion system, a 130-mm main gun, and AI-based fire controls, the K3 is poised for consideration by Poland, the leading purchaser of Korean tanks. The development of the K3 involved collaboration with Korea's Agency for Defense Development and the Defense Agency for Technology and Quality.