Yerevan /Mediamax/. Units of the 102nd Russian military base started the main phase of tactical exercises and went on to defense in high altitude conditions at Alagyaz polygon.

Motorized rifle, tank, artillery and special forces interact in repelling attacks of conditional rival, Russian base press service informs.

Army Aviation Pilots will work the conditional training missile launches and dump bombs on ground targets of conditional rival at Alagyaz polygon after relocation from the Rostov military airfield.

UAV units will observe the course of defensive operations and the firing of all weapons at nighttime and transfer photos and video data to supervisor of the training in real time.

Tactical exercises are held at high-altitude Kamhud and Alagyaz polygons for a week and will last until July 16.