What I see is a shift in strategy from the Chinese side. It seems like that they have decided that it's high time to expand its power and influence, and is now utilizing a centuries old strategy of "远交进攻", which means "allying with the far and fighting with the near"--a strategy used by Qin Shi Huang to conquer the 6 kingdoms and become the first emperor of China. They're clearly endearing themselves to Africa, the Muslim nations, and South America while moving in on the SE Asian nations and their American/European backers.