Beijing on Saturday rotated a new coastguard task force into waters east of Taiwan. The second such deployment in about a month came days after China’s top diplomat urged Washington to exercise “utmost prudence” on the self-governed island. The move also comes close on the heels of high-level talks with the Philippines, where Beijing pressed Manila to match words with deeds and stabilise bilateral relations amid persistent South China Sea tensions. The Chinese coastguard said on Saturday that...