Hyundai Rotem, a subsidiary of Hyundai, has revealed the groundbreaking K3 battle tank concept, which is set to revolutionize South Korea's military capabilities. Through collaboration with Korea's Agency for Defense Development and tech research institutions, Hyundai Rotem is working on developing the world's first hydrogen-powered main battle tank, the K3. The goal is to have the K3 ready for production by 2040. The K3 will feature hydrogen fuel cell propulsion, gradually replacing the K-series diesel engines, with initial prototypes utilizing hybrid hydrogen and diesel configurations. This transition is part of South Korea's broader initiative to upgrade its military vehicles by moving away from traditional combustion engines. The adoption of hydrogen fuel cell technology in the K3 not only enhances its environmental sustainability but also boosts its battlefield effectiveness. Hyundai Rotem emphasizes that the K3's next-generation design will lead to superior mission efficiency, meeting the evolving warfare needs for increased firepower, command control, and survivability. To enhance stealth and combat performance, the K3 will integrate an AI-based fire control system, autonomous driving capabilities, and deployable slave drones. It will also be equipped with a potent 130-mm smoothbore main gun with preemptive strike capabilities. The tank's design includes various tactical benefits, such as reduced noise and heat generation, leading to improved fuel economy and detectability. The quieter engine allows for better acceleration and mobility, enabling efficient maneuvering through challenging terrains. With fewer moving components, the tank's maintenance requirements are minimized, and its stealth characteristics, complemented by reduced radar and infrared signatures, make it hard to detect. The K3 will operate with a crew of three within an armored capsule at the front of the hull for enhanced protection. It will feature an unmanned turret with a remotely controlled 130-mm cannon for long-range operations. Additionally, the tank will be armed with multi-purpose anti-tank guided missiles boasting a range of 5 miles and advanced engagement modes. Defense enhancements on the K3 include a DIRCM system for heat-seeking missile defense, an APS, and a drone jamming device. Its low-profile design, advanced armor with modular steel, ceramic, and composite layers, and remote-controlled weapon stations enhance its adaptability on the battlefield.