Trucks backed up for miles as they waited to enter the Eurotunnel complex on Dec. 16, in Calais, France. Great Britain and the European Union reached a last-minute post-Brexit trade agreement on Dec. 24.

A migrant dashes across the A16 highway on December 16, 2020 in Calais, France. Queues of trucks waiting to enter the Eurotunnel complex often stretch onto the ramps adjacent to the highway, attracting migrants who try to sneak aboard in the hopes of reaching the United Kingdom.