China sends a flotilla to Scarborough Shoal even before the G-20 is over.
China didn’t finish hosting the G-20 summit in Hangzhou until Monday but already on the weekend it was moving to advance its territorial claims in the South China Sea. Add new U.S.-Philippine tensions thanks to mercurial new President Rodrigo Duterte, and the region may be in for more turbulence.

http://www.wsj.com/articles/pacific-shoals-of-trouble-1473203623