
Cane Fu: A favourite melee weapon for the White Gloves. Strangely, but believably, the ending says that some of the Khans still believe it was worth it to spite the NCR. If you honestly believe they'll make your Amazons into officers, then you're either living under a rock or just plain deserve it. Caesar's Legion does this in general to most tribes. Oh, and provided you didn't side against the latter. And, of course, their tribal identity is annihilated and the Great Khans are forgotten. Not breaking their alliance with The Legion means that, as they do with all tribes under their rule, they kill the elderly and infirm, declare the women chattel and the rest are slaves to Caesar. The ending for the Great Khans is determined by what you do during their main questline. If you convince them to side with the NCR and go for that respective ending, the latter will end up completely going back on their promises, and the Khans moved onto a barren reservation far north of any trade routes.
Two of the Great Khans' endings are this. In truth, they plan on keeping your brain for themselves, because they need it for their own agenda.
Mobius, on the promise that they'll let you go once you retrieve your brain and get it back in your skull. In Old World Blues, the Think Tank enlist your help in defeating their enemy, Dr.