As will be, likely as not, anyone who takes their place. That's why a more equitable distribution of power is so important. As long as we allow a few countries to dominate world affairs, they will continue to attempt (to varying degrees depending on their interests, public mood, and political class) to do so to their own benefit (or rather, to the decision-makers' benefit) regardless of the morality of their actions.
USA, Russia, China. All bullies. Always has been.
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