https://www.nbcnews.com/world/russia/mystery-us-military-plane-lands-moscow-rcna594262
It was not known who was on board the plane and why it was in Russia. When asked, Kremlin spokesman Dmitry Peskov said he did not have information about the aircraft.
Data from FlightRadar24 tracking site showed that a Boeing C-17A Globemaster III approached Vnukovo International Airport in Moscow just after 10 a.m. local time (3 a.m. ET) after taking off from Riga, the capital of Latvia, two hours earlier.
The plane had departed from the U.S. Air Force’s Joint Base Andrews in Maryland on Sunday afternoon just before 5 p.m. ET., the data showed.
They were tracking ADS-B though? IIRC that's spoofable.
Military back-channels can't trust comms. Really important meetings can't go through ambassadors, satellites, or telco equipment.
The ball is being put in someones court.
https://m.stacker.news/153562
https://m.stacker.news/153563