One of the main attractions at the local museum in Newry, a bustling market town some 40 miles south of Belfast, is an old wooden sign. Painted on a chalky white background, its tall red letters proclaim in Irish, then in English: “Custaim: Stad, Customs: Stop.” For decades, this sign …

As the world braces for a prolonged economic downturn due to the coronavirus pandemic, the United Kingdom and Ireland may have to face this crisis alongside another, partly self-inflicted one: a no-deal Brexit. The U.K. officially left the European Union in January and is currently in a transition period that …

Over the past four years, as the United Kingdom has wrestled with the consequences of its narrow vote to leave the European Union, there has been little to no broader foreign policy debate in the country. Instead, Britons seem to have become caught between three temperaments. There are the catastrophists, …