In a section apparently designed to scare western recruit into staying at home and attacking the West from there, the manual says recruits may have to sleep on “sand, rocks or grass.” Laying out the training, Khan writes: “In al-qa’idah, we don’t care about the size of your muscles, how fast you run, how strong your legs are and so on - although these things will be strengthened - but we put a special focus on ’lasting long’ and outdoing the enemy in patience.” At one camp in Afghanistan, he warns, the trainers ordered the fighters to walk around barefoot.