The first Battalion of Fusiliers to serve in Northern Ireland since the present troubles began arrived in June 1970. By this time, the Royal Northumberland Fusiliers, the Royal Warwickshire Fusiliers, the Royal Fusiliers and the Lancashire Fusiliers had been merged into a new large regiment, The Royal Regiment of Fusiliers.

The Fusiliers have completed over 30 operational tours in Northern Ireland since 1970.