North Korea said Sunday the United States' collapse is "historical destiny," pointing to what it calls the "most sordid" presidential election debate and a rise in gun violence in the States.

Pyongyang made the hostile remarks in a white paper, just a couple of days before the crucial US election that pits Democratic Party standard-bearer Hillary Clinton against her Republican rival Donald Trump.

"In history, there is no path forward when there are confrontations or wars," the white paper read.

"(History) has proved that when people, society and even politics decay, the country would fail," it added.

Touching on the set of the election debates between Clinton and Trump, the communist state said that they were the "dirtiest" debate, in its typical mockery of the US, which it has constantly cited as its national security threat.

In the white paper, Pyongyang also denounced Washington's policy refocus on the Asia-Pacific and its stance of "strategic patience" towards Pyongyang, arguing that America's foreign policy strategy is not working at all.

"The Obama administration's various external policy strategies have suffered bitter blows, and are leading the world's strategic landscape, which has already been menacing to itself, into a situation that is more unfavorable to the US," it said.

The policy document also claimed that during Obama's presidential term since 2009, the US has become the world's "greatest anti-human rights, criminal" state. (Yonhap)