North Korea Kim Jong Un
North Korean leader Kim Jong Un supervised a ballistic rocket launching drill of Hwasong artillery units of the Strategic Force of the Korean People's Army in this undated photo released by North Korea's Korean Central News Agency in Pyongyang, March 7, 2017. Reuters/KCNA

As the United States prepares for an aircraft carrier strike group to join ally South Korea for military exercises, North Korea has threatened the countries with “merciless ultra-precision strikes” if their actions infringe upon the sovereignty of Kim Jong Un’s regime.

“If they infringe on the DPRK's [Democratic People's Republic of Korea or North Korea] sovereignty and dignity even a bit, its army will launch merciless ultra-precision strikes from ground, air, sea and underwater,” North Korea’s state news agency KCNA said Tuesday.

Read: North Korea Issues Another Nuclear Missile Threat To US, South Korea Over Joint Drills

According to a U.S. Navy spokesman, USS Carl Vinson’s deployment, which is leading the aircraft carrier group, is a scheduled move that will see the vessel take part in exercises with South Korean forces, Reuters reported. But it has raised red flags for Kim Jong Un’s regime.

“On March 11 alone, many enemy carrier-based aircraft flew along a course near territorial air and waters of the DPRK to stage drills of dropping bombs and making surprise attacks on the ground targets of its army,” KCNA said.

The country fired four ballistic missiles last week in response to the military drills being conducted by the South and the U.S., which some consider “an explicit radical threat” aimed at North Korea. The drills will see units of the U.S. special operations forces — including the U.S. Navy SEAL Team Six responsible for Osama Bin Laden’s death, Army's Rangers, Delta Force and Green Berets — take part in the joint exercises.

Both countries maintain that the drills are purely defensive. The U.S. is also moving ahead with the deployment of an anti-missile defense system in South Korea to counter the North’s nuclear threat after Kim Jong Un’s regime increased the number of missiles that it has test-fired over the past few months.

North Korea’s response to the exercise has been very hostile and KCNA published a commentary titled “U.S. Slightest Misjudgment of DPRK Will Lead It to Final Doom” to warn the U.S. of the possible consequences of any aggression aimed at Pyongyang.

“Now that the U.S. started dangerous nuclear war drills again, the DPRK has no option but to counter it with the toughest measures for bolstering the nuclear force as it had already declared,” the article read. “If even a single shell is fired into the territory in which the sovereignty of the DPRK is exercised, the bases of aggression and provocation will be reduced to such debris that no living thing can be found.”