The U.S. Department of Energy's National Clean Hydrogen Strategy highlights the pivotal role of clean hydrogen in achieving net-zero emissions by 2050, particularly in sectors like transportation and logistics. Initiatives like the 'Hydrogen Earthshot' aim to drive down clean hydrogen production costs significantly by 2031, with a recent $46 million funding boost to propel hydrogen and fuel cell technologies. This funding supports projects across sectors and includes advancing the use of hydrogen in transportation, like fuel cell-powered motorcoach buses. Hydrogen fuel cells present a game-changing solution for Unmanned Aircraft Systems (UAS), offering extended flight times and enhanced energy efficiencies. Intelligent Energy's IE-Soar suite of UAS-specific hydrogen fuel cells enables drones to operate for hours compared to minutes with batteries, revolutionizing applications like wind farm inspections and power line surveillance. The sustainability benefits of hydrogen extend to military applications, where longer flight durations enhance Intelligence, Surveillance, and Reconnaissance (ISR) capabilities. Intelligent Energy's hydrogen fuel cells have been optimized based on customer feedback, catering to diverse drone applications like long-distance LiDAR mapping and ISR missions. The company's hybrid propulsion configuration combines the energy density of fuel cells with the power density of batteries, ensuring reliable power systems in UAS operations. The gradual adoption of hydrogen fuel cells is hindered by regulatory challenges, despite the evident operational advantages they offer. In conclusion, hydrogen fueling solutions have the potential to transform UAS operations, making them more sustainable, efficient, and versatile. By enabling longer flight times, increased payload capabilities, and operational flexibility, hydrogen propulsion emerges as a key enabler for a cleaner and more resilient transport and energy ecosystem.