An anonymous reader writes "The BBC reports on advancements in the US military's robotic exoskeleton program. It's being spearheaded by Sarcos, a research laboratory in Utah. The firm has designed the XOS exoskeleton for US Army use, a lightweight frame that gives the user greater strength and endurance. 'With the exoskeleton on and fully powered up, Rex can easily pull down weight of more than 90 kilos, more than he weighs. For the army the XOS could mean quicker supply lines, or fewer injuries when soldiers need to lift heavy weights or move objects around repeatedly. Initial models would be used as workhorses, on the logistics side. Later models, the army hopes, could go into combat, carrying heavier weapons, or even wounded colleagues.'"