Generally at altitude the wind goes from west to east. During the Cold War the US would launch spy balloons to overfly Russia whilst the wind was blowing again

Generally at altitude the wind goes from west to east. During the Cold War the US would launch spy balloons to overfly Russia whilst the wind was blowing against the Russians reciprocating. This is generally true in the current Ukraine war too. Some interesting links: https://www.hisutton.com/US-Navy-CIA-Submarine-Launched-Spy-Balloons.html https://www.hisutton.com/US-Navy-CIA-Submarine-Launched-Spy-... https://www.hisutton.com/Chinese-Navy-High-Altitude-Spy-Balloons.html https://www.hisutton.com/Chinese-Navy-High-Altitude-Spy-Ball... https://m.youtube.com/watch?v=iD6XaaO9bEo https://m.youtube.com/watch?v=iD6XaaO9bEo