Biden’s visit a timely reminder of the US role in ending the Troubles

The writer was chief British government negotiator in Northern Ireland from 1997-2007

Twenty-five years ago, the Good Friday Agreement was signed in Castle Buildings, a shabby government office on the Stormont estate in Northern Ireland, ending 30 years of civil war. More than 3,700 people lost their lives in the Troubles. Many hundreds are alive today who would have been killed if it were not for that agreement.