The United States is preparing to boost its military presence in Europe at a cost of up to $1bn, President Barack Obama said, as tensions in the region simmer over Russia’s aggressive actions in Ukraine.

The United States is preparing to boost its military presence in Europe and at a cost of up to $1bn (€734m) President Barack Obama has said.

Greenpeace activists claimed they came under attack today while trying to stop Dutch trawlers fishing in the Dogger Bank area of the North Sea.