After a year of tortuous negotiations on the U.K.’s exit from the European Union, many Britons have learned that Brexit isn’t just about Brexit. One of the more obscure complications for London involves Gibraltar, a small British territory near Spain’s southern tip.
A House of Lords committee wrote to Brexit secretary David Davis on Wednesday demanding clarity on the government’s position on Gibraltar, saying the U.K. must commit to maintaining an open border between Spain and the territory, and to take action to ensure that...