North Korea Tests Nuclear-Capable Underwater Attack Drone/System

North Korea has claimed to have tested a new nuclear-capable underwater attack drone, named "Haeil," that can generate a radioactive tsunami. The drone system is intended to make sneak attacks in enemy waters and destroy naval striker groups and major operational ports by making a super-scale radioactive wave through an underwater explosion. The test was overseen by leader Kim Jong Un. Pyongyang also confirmed the North fired cruise missiles on Wednesday to practice carrying out tactical nuclear attack missions. The latest tests took place as South Korean and U.S. troops launched their largest amphibious landing drills in years, involving a U.S. amphibious assault ship, on Monday.