The European Union has offered Canada something it has never offered another country: associate membership. Quite what that means remains unclear, but Brussels and Ottawa are determined to turn their shared values and increasingly close relationship into a new kind of partnership in a world shaken by Donald Trump's unpredictable foreign policy.
The experiment is being watched closely in London, where Prime Minister Andy Burnham is seeking to rebuild Britain's post-Brexit relationship with the EU, raising the question of whether a similar arrangement might eventually be available to the UK.