Monday's drill was aimed at proving the reliability of the North Korean nuclear force and strengthening it "both in quality and quantity," a North Korean state-run news agency said.
The exercise, which was attended by the country’s leader Kim Jong Un, involved "firing projectiles from a super-large multiple rocket launchers with a simulated nuclear warhead."
Take a look at North Korea's first combined tactical drill simulating a nuclear counterattack in Sputnik's gallery: