The US launch of a hypersonic nuclear missile

https://www.mirror.co.uk/news/world-news/launch-hypersonic-nuclear-missile-hours-34046241

https://www.vice.com/en/article/everything-you-ever-needed-to-know-about-hypersonic-missiles/

https://theconversation.com/how-hypersonic-missiles-work-and-the-unique-threats-they-pose-an-aerospace-engineer-explains-180836

There are several potential Nuclear+War+Scenarios and they all end terribly for civilization and the world in general.

https://thedigitallabyrinth.blogspot.com/search?q=hypersonic+nuclear+missiles

https://thedigitallabyrinth.blogspot.com/search?q=Russian+nuclear+forces

https://thedigitallabyrinth.blogspot.com/search?q=Nuclear+War+Scenarios