The border isn't demarcated and you need to consider the larger context of the Nagorno-Karabakh conflict where Armenian armed forces helped ethnic Armenians create unrecognized state on the territory of Azerbaijan. [0] You don't get to claim that you are a victim when you have created a pseudo-state on the territory of your neighbor.
Russia had that in CSTO.
After Russia ignored Armenia’s request for help, it’s worthless.
And Russia has already created entrenched conflicts in a number of countries for exactly that reason.