By Kang Seung-woo North Korean leader Kim Jong-un's pledge to boost his country's nuclear arsenal during its latest party congress is leaving little room for compromise on Pyongyang's complete denuclearization. With the North standing firm against giving up its nuclear ambitions after decades of unsuccessful U.S. diplomacy, experts are advising the incoming Joe Biden administration to shift the conversation with the regime from denuclearization to arms control, which they believe is a more realistic approach to the challenge. Previous U.S. administrations have dealt with the North Korean nuclear program from a denuclearization perspective, which led to decades of disappointment when it came to actual results, according to Van Jackson, a former Pentagon official who advised several Democratic presidential campaigns.