Brexit: Ireland watches the vote unfold

In June 2016, voters in the UK were asked whether they wanted to remain in the European Union or leave. It was a decision that would divide the country and reshape relations with its closest neighbours.

As the result emerged overnight, Rory Montgomery was one of the officials responsible for preparing Ireland's response.

The former diplomat remembers watching the night unfold from Dublin and tells Helen Ledwick why it mattered so much for Ireland.

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(Photo: European Union and Union flags flying together. Credit: Chris Ratcliffe/Bloomberg via Getty Images)