A retired Russian military Colonel gestured to the map showing Gotland, Sweden s largest island with a population of around 58,595, circled in red, as he spoke of how a Baltic invasion might look.
NATO s largest Arctic exercise since the 1980s has begun today after sending 30,000 troops from 28 countries in Europe and North America to Russian-neighbour Norway.
NATO has sent tens of thousands of troops, including Royal Marines, an aircraft carrier (pictured), and a nuclear-powered attack submarine to Norway, which borders Russia.