Crossing the border
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Crossing the Irish border

When Brexit happens, the UK will suddenly have a major land border with the EU.

The frontier is 310 miles (499km) long but can you always tell when you cross one of the 300 cross-border roads?

One east-west road cuts across the border four times inside six miles.

Read our special Brexit report

Video journalist: Peter Hamill

  • 31 May 2017