US national security threat from space: Mystery Russian project is worrying, say experts

Any kinetic attack against a satellite, for example a US or Nato member satellite would obviously be a huge escalation and present a red line, because we haven't seen it yet,” says Juliana Suess, an expert in space warfare at Rusi, a UK defence think tank. ...“We have seen the use of counter space measures, in terms of jamming, spoofing cyber attacks against satellites, we've seen all of that, and they are now a part of modern warfare, and space capabilities present an extension of that battlefield because space enables terrestrial capabilities."