I would assume most nations would treat this the same as them bombing a radio tower in the 40s. Absolutely an act of war.
If nukes didn’t exist you can bet your butts that most of these countries would not be playing around like this. The only reason they could even think doing that might be a good idea is because they know that nobody wants to kick off nuclear war. Still just seems like an unnecessary bear to poke if you ask me.
They said that when Google glass came out all those years ago. I’ll believe it when I see it. I think the majority of the public would not want to spend money on something that only does the same thing their phone does but worse.