Britain will encourage European leaders to expel Russian intelligence agents from their own countries, warning that the west faces a long-term threat from Vladimir Putin, The Guardian reports.
The prime minister will brief leaders over dinner at the European council summit, where she will stress a pattern of aggressive Russian behaviour. "The challenge of Russia is one that will endure for years to come," she will say. "As a European democracy, the UK will stand shoulder to shoulder with the EU and Nato to face these threats together. United, we will succeed."