I imagine countries would only do this begrudgingly out of necessity. The U.S. has positioned itself as unworthy of trust and respect and is basically taking the mafia protection approach to getting other nations to work with it.
Trust lost is trust that either never comes back or it takes tremendous, long term continuous effort. Not holding my breath.
“We can’t. The updates are still updating”
https://en.wikipedia.org/wiki/Boeing_E-6_Mercury
Tl;dr attenuation of signals in water is frequency dependent, just like in air or walls, etc.
So the plane has a 5 mile long antenna
https://bulgarianmilitary.com/amp/2025/03/09/russian-media-c...