> It would be illegal for the pilots to ignore such an order while inside a country's airspace.
The pilots could report that they are having technical difficulties and are unable to override the current route programmed into the autopilot. They are also have issues disengaging the autopilot. So they are "forced" to continue their flight on their pre-filed flight plan.
Any direction from ATC would be replied with "Unable":
* https://www.boldmethod.com/blog/lists/2021/01/10-times-you-s...
* https://aviation.stackexchange.com/questions/7915/who-has-th...
* https://aviation.stackexchange.com/questions/24756/when-can-...
* https://atccommunication.com/cannot-comply-with-an-atc-clear...
Short of shooting down the plane there's nothing anyone can do about it.
This is exactly what Belarus just did. The US and it's allies are now strongly objecting that it's illegal and improper to do exactly what they've previously done.
The idea of mutually agreeing to allow commercial transportation aircraft to transit your airspace is supposed to be that this is not done. It is hugely hypocritical for the US to have used this same tactic, even if done through proxies.
Had Belarus closed their airspace, the ryanair flight would have had to fly around (or divert to Warsaw or Lviv)
Not defending it, especially the alleged search once it landed, but it was very different to a hoax bomb threat on a commercial plane
No it's not?!
Yep, unsophisticated peasants tend to use more force than experienced urbanites. Dreadful, don't you know.