First confrontation between Chinese and US warships near Scarborough Shoal in six years comes after a pair of Chinese vessels collide while chasing away a Philippine ship from disputed atoll

China’s military said on Wednesday it monitored and “drove away” a U.S. destroyer that sailed near the disputed Scarborough Shoal in the busy waterway of the South China Sea, while the U.S. Navy said its action was in line with international law.