In 2008 the size of the National Barrier Asset was tripled to meet expected demands . It came to prominence for the 2014 NATO Summit , when it was erected around the Celtic Manor in Newport and in parts of Cardiff . In June 2015 it was announced that around 2 miles ( 4 kilometres ) of the asset would be sent to Calais to help prevent illegal immigration to the United Kingdom . In 2017 , Police Scotland deployed the asset in Edinburgh ahead of the Fringe festival
2014 NATO Summit
2014 Wales summit
National Barrier Asset