The possibility of a super soldier is not so outlandish and one that not just China is interested in. Enhancement is nothing new - since ancient times, troops have been bolstered by advancements in weaponry, kit and training. But today, enhancement could mean much more than merely giving an individual soldier a better gun. It could mean altering the individual soldier. In 2017, Russia's President Vladimir Putin warned that humanity could soon create something worse than a nuclear bomb". "One may imagine that a man can create a man with some given characteristics, not only theoretically but also practically. He can be a genius mathematician, a brilliant musician or a soldier, a man who can fight without fear, compassion, regret or pain." Last year, the former US Director of National Intelligence (DNI), John Ratcliffe, went further with a blunt accusation against China. "China has even conducted human testing on members of the People's Liberation Army in hope of developing soldiers with biologically enhanced capabilities. There are no ethical boundaries to Beijing's pursuit of power," he wrote. Prof [Patrick] Lin said "a key challenge is that nearly all of this is dual-use research. For instance, exoskeleton research was first aimed at helping or curing people of medical conditions, such as to help paralysed patients walk again. But this therapeutic use can be easily weaponised. It's not obvious how to regulate it, without overly broad regulation that also frustrates therapeutic research."