North Korea says latest missile test simulated nuclear counterstrike

North Korea said Monday it simulated a nuclear attack on South Korea with a ballistic missile launch over the weekend that was its fifth missile demonstration this month to protest the largest joint military exercises in years between the U.S. and South Korea.

The North’s leader Kim Jong Un instructed his military to hold more drills to sharpen the war readiness of his nuclear forces in the face of “aggression” by his enemies, state media reported.

The South Korean and Japanese militaries detected the short-range missile being launched Sunday into...