Prime Minister Justin Trudeau has touched down in London to begin a six-day European visit that will wind up in paris at the UN climate conference.

This morning he had a meeting with the Queen at Buckingham Palace, and after giving a speech at Canada House in Trafalgar Square, he’s sitting down with British Prime Minister David Cameron where it’s expected climate change, anti-terrorism measures and the Canada-European Union free trade agreement will be on the agenda.

Trudeau has met the Queen before — as a young child in the 1970s when his father was prime minister.