It is difficult to all sides of the conflict to return to their homes while being dead.
This is why fuel should not be put in the fire of ethnic civil wars. By encouraging your party of preference to score a win you encourage the other party to stiffen their resistance, leading to massive casualties and no resolution. Because the only actual resolution would involve sides talking and making concessions, and you didn't want your preferred party to do that, because you decided they are right all around and so should just get what they want, in full.
What happened in Bosnia with Dayton agreements could still happen, just earlier and with way fewer deaths.
By your own admission, "not many has died" [sic] in the Nagorno-Karabakh conflict. This contrasts with the tens of thousands of Bosniaks who literally died because they were massacred by Serbs.
That's a civil war. People die on all sides and lose their homes. In Nagorno-Karabakh, the Armenian population was so sure of its upcoming fate that it packed its bags and left as one, in about two weeks period.
Bosniaks just considered it's better to risk death but keep their homes. Serbs who lived there also did the same choice. The peace talks should have started immediately.
I have exactly zero faith in any accusations coming in from US/NATO because that's Jack the Ripper handing out traffic tickets scenario. So let's pretend I didn't hear about "blah blah massacred blah blah", and you didn't post that. That, and you are trying to pass a list of news report at eleven as a list of document war crimes in the other thread.
It's difficult to return to your home when you're dead.