The isolationist nation waited until the 64th birthday of the Mutual Defence Treaty to state that the agreement forms the basis of an incoming invasion by the US and neighbouring South Korea.
Despot leader Kim Jong-un used his puppet newspaper, Rodong Sinmun, to take aim at the treaty on Sunday.
The Rodong Sinmun described the agreement as: “a treaty embedded with a plot to actualise their delusion to invade North Korea”.
The paper added: “The Mutual Defence Treaty is explicitly implanted with the US’ reckless ambition for invasion as it aims to trigger a war of invasion into North Korea at any time.
“The invasion war treaty should be abolished without delay.”
The Mutual Defence Treaty states that if either the US or South Korea is faced with an external armed attack – the other will come to the attacked country’s aid.
The positioning of US troops in South Korea is justified by the treaty – this is one of the biggest reasons for Pyongyang’s recent condemnation.
The agreement was signed on 1 October, 1953 – two months later the Korean Armistice was signed that formally ended the Korean war.
No peace treaty was ever signed between the North and South, meaning the two countries are still technically at war.
The damning of the age-old treaty comes at a time when the US and North Korea sit on the brink of starting World War 2.
North Korea recently accused the US of declaring war after a recent tweet from Donald Trump lashed out at the hermit state.
President Trump wrote: “Just heard Foreign Minister of North Korea speak at UN. If he echoes thoughts of Little Rocket Man, they won’t be around much longer!”
In response, North Korea’s Foreign Minister, Ri Yong Ho, claimed the country will take aim at any further bombers, even if they occupy international airspace.
Since the feud, the US has denied declaring war on North Korea with White House press secretary Sarah Sanders claiming accusations made were “absurd”.
Yesterday North Korea issued a major threat against neighbour Japan.
The rogue state, which has fired two rockets over Japanese territory this year, sent the warning “you will pay for your crimes”.
Pyongyang-based newspaper issued the threat to Tokyo which was a reference to past government-general rule over Korea enforced by Japan.