Chinese coastguard ships on Sunday fired water cannons and rammed Philippine ships bringing supplies to soldiers stationed on a disputed shoal in the South China Sea, the Philippine government said. One of the Philippine ships suffered “severe” engine damage and had to be towed back to land, while another ship’s mast was broken after being hit by the “full strength of the water cannon of the China Coast Guard,” the National Task Force on the West Philippine Sea said in a statement. One of the civilian supply boats was rammed by a Chinese coastguard ship, but managed to reach Second Thomas Shoa…