North Korea conducted a major firepower drill using 600mm ultra-precision rocket launchers as tensions rise during US-South Korea Freedom Shield exercises. Kim Jong Un reiterated the need for a strong nuclear deterrent Earlier on Mar 14, Pyongyang fired about 10 unidentified ballistic missiles into the sea and on Mar 11, North Korea test-fired another cruise missiles from the Choe Hyon destroyer. Japan's coast guard on Mar 14 said it had detected a ballistic missi... [4096 chars]