Based near Anadyr, its role is to 'monitor combat readiness' of military units, survey terrain, and air patrols.
Threat to Salekhard and Anadyr could come even sooner - by the mid-2020s - as thaw of frozen ground is forecast to have 'devastating' impact.
The Alaska-Siberia flight recalls historic Second World War supply route which helped defeat Nazism.
Sour relations not stopping memorial to historic flights to help save world from Nazism.
The navigator, who served in the Navy of Peter the Great, gave his name to the Bering Strait, the Bering Sea, Bering Island, Bering Glacier and Bering Bridge.
Two cargo jets purchased to supply goods bought on internet to remote Siberian locations.
After 72 days stopover in Russia, British solo pilot Colin Hales continues his world tour.
New route connecting (almost) to diamond capital Yakutsk faces funding and contractor crisis causing delay.