More than half the Arctic's coastline is Russian territory and in the last six years Moscow has built more than 475 military ...

But what is Nato, and why is it central to the current conflict? The North Atlantic Treaty Organization, or Nato, is a political and military alliance of 32 countries "that exists ... is considered an ...

During his first term as US president, Trump persuaded many Nato members to ramp up defence spending. In 2018 he said that all countries in the alliance should be spending 4% of GDP. While ...