The US, UK, AU, and Russia have been back and forth on leadership relative to some metric or another wrt Over the Horizon systems throughout the post war period.

> the world's finest radar and navigation tech

Hadn't realised the UK had a sat nav constellation up (nav tech) and .. are we counting Starlink as radar tech?

* https://en.wikipedia.org/wiki/Over-the-horizon_radar

* https://www.youtube.com/watch?v=jbp3kdJZ1_A