The 86th (East Anglian) (Hertfordshire Yeomanry) Field Regiment, Royal Artillery, was a unit of Britain's part-time Territorial Army (TA) formed after World War I from existing artillery and Yeomanry Cavalry units recruited in Hertfordshire. Its self-propelled guns were among the first artillery to land in Normandy on D Day and served throughout the North West Europe campaign in World War II, seeing action in Normandy, at the liberation of Antwerp, in Operations Market Garden, Clipper and Veritable, the Rhine crossing and the advance across Germany. The regiment continued in the postwar TA until 1967, and its successor battery continued to 2014.