We propose to research, develop, and demonstrate SupplyBot: A humanoid robot with mobility capabilities that allow it to resupply Soldiers in extreme environments, which cannot be reached by traditional ground vehicles. SupplyBot will deliver supplies by autonomously traversing narrow trails, scrambling up rocky hills, opening doors, squeezing through narrow spaces, crawling through windows and mouse holes, climbing stairs and ladders, stepping over obstacles, and crawling underneath obstacles. It will help extend the âtip of the spearâ by reducing the security requirements for resupply and enhancing the situation awareness of the last 100 meters, while providing 24 hour resupply capabilities. The robot will have commercial applications in the dangerous industry of confined space inspection, maintenance, painting, and repa