So far, the large majority of British and EU citizens have not felt the realities of Brexit. Though the U.K. left the European Union on Jan. 31, it follows the bloc’s rules until the end of this year as part of a transition period to the new economic relationship.

Long lines of trucks carrying stockpiles for British companies jam the highways leading to France’s northern port of Calais, while in the coastal town of Boulogne-sur-Mer, French fishermen pull in their lines and fear that battles over fishing rights will soon erupt.

Britain’s foreign minister said Sunday there is only about a week left for the U.K. and the European Union to strike a post-Brexit trade deal, with fishing rights the major obstacle to an agreement.