When the United Kingdom leaves the European Union (EU) on January 31, 2020, it will be one of the biggest political shifts in Europe for years. A key risk of Brexit is that it could divide and weaken the EU and the UK at a time when Europe should be a positive force in the world on human rights, climate change, and much else besides. If the UK wants to make a success of Brexit, it should lead by example on human rights. That means redoubling its commitment to human rights at home, and promoting them overseas.