Russia's military presence in the Arctic

Swift response by the Russian president to Canada's move to claim seabed under the North Pole and surrounding waters.

Measures being taken to ensure defence capabilities.

Revamped airfields on target in key Siberian locations as military is boosted in energy-rich region.

Russian foreign minister Sergei Lavrov and US secretary of state John Kerry will attend the May 14-15 Arctic Council in Kiruna, Sweden.

Move boosts armed forces capability in polar waters. 

Military tests in minus 30C to check performance of equipment and personnel in toughest of conditions.

Map of shame: Greenpeace highlights junk and debris in dozens of sites across the 'pristine' environment.

A Copenhagen scientific expedition is on its way to prepare a claim that vast energy wealth under the Arctic belongs to the Danish Crown.

A major new Arctic clean-up expedition is poised to start work getting rid of junk and pollution blighting this vast region.