North Korea has vowed to speed up the production of its nuclear arsenal, and has threatened once again to use the weapons if provoked. “We will continue to implement measures aimed at strengthening and developing our country’s nuclear forces at the maximum speed,” the country’s leader, Kim Jong-Un, announced during a speech at a military parade in Pyongyang on Monday night, according to state media. Kim told the crowd that North Korea could preemptively use its nuclear weapons when threatened by attacks, and called for his nuclear forces to be fully prepared to go “in motion at any time.” The military parade was held to mark the 90th anniversary of the founding of the Korean People’s Revolutionary Army, and featured an array of weapons, including missiles that the country claims can reach as far as the United States. North Korea releases images of interballistic missile launch US leads calls for sanctions against North Korea after long-range missile test North Korea’s Kim Jong Un attends parade honouring grandfather’s birthday Relations between Pyongyang and the West remain tense. Nuclear weapon negotiations between Pyongyang and Washington stalled in 2019, two years after North Korea announced it possessed missiles that could reach the continental…