Beijing had a “rich and powerful” toolkit to use against those who “make waves” in the South China Sea, China’s military mouthpiece warned on Sunday, following efforts by Manila to map out its claim to a disputed shoal. The PLA Daily warning came a day after the Chinese military mounted joint naval and air drills near Scarborough Shoal, a contested group of low-lying rocky islets known as Huangyan Island in China and Panatag Shoal in the Philippines. “We also issue a stern warning to forces...