If the United States, the world's only remaining superpower, is widely regarded as having 'lost it', as no longer having the political will or the nerve to intervene in a crisis to ease tensions and restore order . . . that means the nations involved will act in their own best interests, without any restraint. After all, their security can now only be guaranteed by their own actions, their own strength.
If you were hoping for lollipops and unicorns, you're SOL.