And also, who do you think wins, when America abandons their mutual defence treaty to the Philippines, or lets Crimea become annexed into Russia?
China gains Scarborough shoal (2012) and Russia gains Crimea (2014). Both these countries gained territory, both won.
But America also wins, because countries like the Ukraine and the Philippines become utterly dependent on America, to the point where they won't even dare to set a toe across the American line, in which case the US might really leave them.
So Russia, China, America all win. The losers are the countries like Ukraine and the Philippines who tried to play big power politics. (Or Vietnam who lost Xisha islands).