Kim Jong Un urges nuclear attack preparedness against US and South Korea.

North Korea has described its latest ballistic missile launch as a simulated nuclear attack on South Korea, overseen by leader Kim Jong Un, in protest of joint military exercises between the US and South Korea in the Korean Peninsula. The missile was tipped with a mock nuclear warhead and flew about 500 miles off the country’s eastern coast before exploding about 800 meters above targeted waters. Pyongyang has stepped up its show of nuclear force as tensions rise in the Asian region.