The major threat that North Korea poses for the region is primarily its nuclear weapons program, which undermines peace and security. The development and testing of nuclear weapons and ballistic missiles by North Korea have heightened tensions not only on the Korean Peninsula but also throughout East Asia and beyond. This program raises concerns among neighboring countries, leads to an arms race, and complicates diplomatic relations in the region.
While other issues, like military bases or economic factors, may be relevant in different contexts, the nuclear threat is the most significant and immediate challenge that impacts regional stability and security.