SEOUL, Aug. 31 (UPI) — North Korea on Monday condemned what it called the United States’ continued “hostile policy” and vowed to keep bolstering its nuclear arsenal despite U.S. President Donald Trump’s recent overtures to Pyongyang.

In a statement carried by the official Korean Central News Agency, a spokesperson for the Foreign Ministry accused Washington of maintaining a confrontational stance toward North Korea in both “rhetoric and behavior.”

“The Trump administration has thus fully reconfirmed its invariable hostile policy to wantonly violate the sovereignty, political system and security interests of the DPRK through the ‘denuclearization’ racket, ‘human rights’ smear campaign and military threat,” the statement said, using the official acronym for North Korea.

“It is pointless to expect any detente in the region,” it added.

The statement comes amid a push from Trump to restart direct diplomacy with North Korean leader Kim Jong Un, with whom the U.S. president has touted a “very good relationship.”

Earlier this month, Trump ordered Seoul and Washington to curtail their joint Ulchi Freedom Shield military exercise, citing its cost and saying the drills sent an “inappropriate and hostile” signal to Pyongyang. The exercise was subsequently shortened by almost a week.

Despite the move, the U.S. State Department last week reaffirmed its commitment to the “complete denuclearization” of North Korea in a statement to Yonhap News Agency.

The United States, South Korea and Japan also confirmed last week that their annual Freedom Edge trilateral military exercise will be held Sept. 7-11 in international waters east and south of South Korea’s Jeju Island.

The Foreign Ministry spokesperson called the multi-domain exercise a “threat to the DPRK and regional countries.”

North Korea routinely denounces joint military drills as rehearsals for an invasion and has carried out weapons tests around major allied exercises.

The spokesperson said North Korea’s nuclear status, which has been enshrined in its constitution, could not be “weakened nor diluted” by repeated U.S. calls for denuclearization.

“Our nukes serve as an absolute guarantee for defending its sovereignty and the nuclear weapons in possession of the DPRK and their sustained bolstering are the most responsible and correct option for ensuring regional peace and security,” the statement said.

“There is no change in our policy toward the U.S. to respond to its invariable hostile policy with the toughest stand to the last,” it added.