North Korea would "leave no Americans alive" should the two countries again meet on the battlefield, the hermit country's leader, Kim Jong-un, threatened on Monday.

See also: A rare peek inside secretive North Korea

The country is in the midst of celebrating the 62nd anniversary of the armistice agreement that put a decades-long freeze on the Korean War. A peace treaty was never signed and Pyongyang has continued to celebrate the agreement as a victory in the war.

On Monday, after a weekend of pompous speeches by the reclusive country's leaders, the streets in its capital city were decked with flags and banners as crowds cheered its "victory over U.S. imperialism."

Students participate in a mass dance in front of a mural of the late North Korean leader Kim Il Sung delivering a speech, Monday, July 27, 2015, in Pyongyang, North Korea as part of celebrations for the 62nd anniversary of the armistice that ended the Korean War. Image: Wong Maye-E/Associated Press

"Gone forever is the era when the United States blackmailed us with nukes; now the United States is no longer a source of threat and fear for us and we are the very source of fear for it," said Kim in a speech on Saturday, the text of which was broadcast on North Korean television.

He added that his country is now “the very source of fear” for the U.S. and urged younger generations of North Koreans to continue fighting to protect the country's spirit — now that they had nuclear weapons of their own.

North Koreans celebrate the 62nd anniversary of the armistice that ended the Korean War today. 7/27/15. Mansu Hill, Pyongyang, North Korea. A photo posted by Wong Maye-E (@w0ngmayee) on Jul 27, 2015 at 1:42am PDT

At a separate gathering on Sunday, Korean People's Army Gen. Pak Yong Sik, who is believed to be the country's new defense minister, threatened that the North is prepared fight the U.S. until "there would be no one left to sign a surrender document," if it provokes another war.

“It is more than 60 years since the ceasefire on (the) land, but peace has not yet settled on it,” he told the meeting, which included high-level officials, veterans and diplomats stationed in Pyongyang. “The past Korean War brought about the beginning of the downhill turn for the U.S., but the second Korean war will bring the final ruin to U.S. imperialism.”

The U.S. is seeking a deal to curb North Korea's nuclear program

U.S. envoys proposed on Monday that they would be willing to negotiate an Iran-like deal with North Korea's nuclear program.

Sydney Seiler, the United States' envoy for talks on ending North Korea's nuclear program, said that the recent deal with Iran shows flexibility and potential for other denuclearization deals. U.S. Undersecretary of State Wendy Sherman said she hoped it would give Pyongyang "second thoughts" about the nuclear path it was pursuing, according to a report from the Economic Times.

North Korea, however, doesn't seem interested. The country considers its nuclear arsenal an “essential deterrence” against what it perceives to be hostile U.S. policy.

Despite North Korea's refusal to negotiate, Seiler, said that the U.S. is open to negotiate when the country is ready to do so.

“The Iran deal demonstrates the value and possibilities that negotiations bring,” Seiler told reporters on Monday after meeting with his South Korean counterpart. “It demonstrates again our willingness, when we have a willing counterpart, and it demonstrates our flexibility when the DPRK makes a decision that it wants to take a different path.”

Some information in this report is provided by The Associated Press. wp_scm_comment