Mystery explosions have rocked the Russian Arctic, a few miles from a naval ... there are also several sites containing mobile anti-aircraft missiles and electronic warfare antennas.

A combat air patrol of American and Canadian fighter jets was scrambled this week after multiple Russian warplanes were spotted in the Arctic, the North American Aerospace Defense Command said ...

In the 1950s, the Soviet Union attempted to build a mobile nuclear power station on tank tracks—an Arctic land train designed ...

Things in the Arctic have never been hotter. In the past year, Russian nuclear submarines have practiced firing cruise missiles near NATO members Norway, Finland and Sweden. That drill followed ...