Fighting erupts in Nagorno-Karabakh, dozens of casualties reported

[Gilrandir]

Also in the previous months Azerbaijan had been threatening to retake the nagorno karabakh.

Such threats are often heard when two conflicting sides are involved. I set not much store by them - just usual saber rattling. If you were planning an attack, would your ring a bell to announce it?

Yes however Nagorno Karabakh is predominately ethnically armenian, and to prevent more ethnic bloodshed Armenia invaded and secured the territory.

This is how Putin justified invading and annexing the Crimea.

I believe this may lead to Russian involvement embroiling them in yet another conflict they can or can not afford or stomach, This depends on the further escalation. And I believe this could be a premeditated instigation by NATO, Turkey and Azerbaijan knowing that Russia is preoccupied with Syria and Ukraine this would be a great opportunity to strike as Russia will be hesitant.

I don't believe the conflict will grow into anything serious. After all, such exchanges of blows (if not so bloody) are symptomatic of that conflict.