How a referendum would be triggered and the options offered to voters are fraught with difficulty

Mr Johnson told his cabinet this week that leaving the EU without a deal should hold “no fear” for Britain, but was he right?

The Irish Government believes the office would be a reflection of the EU's 'ongoing support' for the peace process.

Last week, the prime minister said Northern Ireland was unable to prepare fully for a no-deal Brexit because of the collapse of devolution.

Identity has always been an issue in Northern Ireland that requires delicate handling. The 1998 Good Friday Agreement helped to smooth things over, by giving people the opportunity to identify as British, Irish or both. But Brexit makes that much more complicated again.