Prompt Global Strike
Russian military journals regularly feature articles presenting future American hypersonic weapons as an existential threat.
China just tested its hypersonic glide vehicle that could potentially fly at 4,000 miles per hour. Hypersonics will change a lot about fighting wars — but when?
The X-37B is a reusable space plane that takes off like a rocket but lands like an aircraft — only nobody is really sure what the US Air Force plans to do with it.