I can’t agree with the US dollar being used as a weapon. Sanctioning is designed to use the dollar to force an adversarial government to do what our government wants them to do. At some point, if this were to be a successful way of controlling governments, then at what point would they use this tactic on its own citizenship to control them. Sanctions weaken the money, and force people to find another source of exchange to avoid these controls. Sanctions also do more harm to the innocent citizenship of sanctioned countries then it does to their ruling class.