Their logic is known though, and it's simply to deliver nukes in the face of American ballistic missile defence (BMD) systems. The US doesn't face any BMD to de

Their logic is known though, and it's simply to deliver nukes in the face of American ballistic missile defence (BMD) systems. The US doesn't face any BMD to defeat, so they just want hypersonics because the others have them. And with the heating mentioned in the text being such that you can't put any good sensing into them, a hypersonic without a nuke is simply a very fast missile that almost always misses its target.