Japan’s re-elected prime minister, Shinzo Abe, has said he is determined to rewrite the country’s pacifist constitution—drawing an immediate sour response from China. A day after securing another four years in office with Sunday’s landslide election victory, Abe signaled he would pursue his long-cherished goal of changing the US-authored constitution. Abe, a conservative, has made no secret of his desire to remove what he regards as unfair constraints on Japan’s military, seven decades after its surrender at the end of a war that saw it occupy neighbors, including China, and attack countries further afield in the Pacific. …