With its latest “final test-fire” of a hypersonic missile, the DPRK has shown that its nuclear capabilities have increased significantly since the Trump-Kim summit in Hanoi in 2019. In fact, US-DPRK relations have regressed to pre-Pyeongchang Winter Olympics levels with the US imposing new sanctions. It may seem like just another trough in the instability of the Korean Peninsula, but if the world looks away, the situation may just reach boiling point before anyone realises it.