North Korea on Tuesday threatened to launch a "preemptive strike" on Cheong Wa Dae as massive joint South Korea-U.S. military drills loom.

"All our strategic and tactical means of strike will be mobilized to carry out preemptive, just operations," the North's Supreme Command said in a statement, if South Korean and U.S. special forces and equipment "which are mobilized for 'decapitation operations' and 'pinpoint strikes,' make the slightest slight move."

"The primary targets of strikes will be Cheong Wa Dae and reactionary ruling agencies, which are dens of plotters of confrontation," it warned.

It also threatened to attack U.S. "bases of aggression" in the Asia and Pacific region and mainland America.