The MiG-31 FoxHound is a long range intercepter originating from Russia. they have been in service with the Armenian airforce since 2015 when the russian decided to sell their aging fleet. armenia bought a full third of the fighters.
It would certainly be good news for the Armenian Air Force should Russia be willing to part with such potent planes in the future! Good job, but I think you need to build up the spine of the plane to meet the rear cockpit. The fins and wings also need enlargement. It will look considerably more like the real thing then. Happy building.