North Korea on Sunday threatened to unleash a missile attack on the United States, warning that its rockets could strike the mainland anytime and there’s no way to “dodge the merciless strike,” according to a report.

President Kim Jong Un’s regime made the blustery threat as the US and South Korea prepared for a joint military exercise on Monday, CNN reported.

“The Trump group’s declaration of the reckless nuclear war exercises against the DPRK … is a reckless behavior driving the situation into the uncontrollable phase of a nuclear war,” an editorial in the government newspaper Rodong Sinmun said, using the initials for the country’s formal name Democratic People’s Republic of Korea.

Pyongyang said the Hermit Kingdon’s military could target the US mainland, Hawaii or Guam anytime and Washington wouldn’t be able to “dodge the merciless strike.”

“The US should pay heed to the statement of the DPRK government that we would not rule out the use of any final means,” another article in the North Korean media said.

North Korea sees the 10-day joint military operation, which Washington described as “defensive in nature,” as practice for an invasion.

“The Korean People’s Army is keeping a high alert, fully ready to contain the enemies. It will take resolute steps the moment even a slight sign of the preventive war is spotted,” the article in Rodong Sinmun said.

K im’s regime last week said it had finalized plans to fire four missiles at Guam, a US territory in the Pacific that is home to thousands of American troops. The military said Kim is studying the plans.

President Trump has pledged to rain down “fire and fury” on North Korea is it continues to test missiles and threaten the US with nuclear weapons.

He also said the US is “locked and loaded” is North Korea continues to “act unwisely.”

Kim’s military last month successfully test-fired two intercontinental ballistic missiles that experts say had the capability of striking Alaska and the US mainland.

The United Nations Security Council imposed strict economic sanctions on North Korea over its weapons program.