SEOUL, South Korea — North Korean leader Kim Jong Un supervised more missile tests from his prized new warship over the weekend, state media said Tuesday, as he pledged to increase the navy’s operational capabilities with his growing collection of nuclear-capable weapons. North Korea’s official newspaper Rodong Sinmun said Kim on Sunday observed the launches of two strategic cruise missiles and three anti-ship missiles from his 5,000-ton-class destroyer, the Choe Hyon, first unveiled in April