Armenia Vs Azerbaijan: Where will the alarming condition of possible 'World war' lead?

Azerbaijan's second-largest city, Ganja, has been shelled by Armenian forces, as heavy clashes continue over the disputed territories Nagorno-Karabakh enclave.
The enclave is officially part of Azerbaijan but run by ethnic Armenians.
Armenia and Azerbaijan went to war over Nagorno-Karabakh in 1988-94, eventually declaring a ceasefire. However, they have never reached a settlement over the dispute.