The Kent Fortress Royal Engineers (KFRE) was a volunteer Territorial unit of the British Army that saw service in both World Wars. They are notable for their successful actions in May 1940, when they destroyed substantial oil stocks and installations just ahead of the German advance, and in August 1944 during the assault crossing of the River Seine.
The London Electrical Engineers was a Volunteer unit of the British Army's Royal Engineers founded in 1897. It pioneered the use of searchlights (S/Ls) for port defence before World War I and for anti-aircraft (AA) defence during the war. In the interwar period it formed the two senior searchlight regiments of the Territorial Army, which defended Southern England during The Blitz. Detachments later served in the Battle of Crete and Siege of Tobruk.
The 1st Hampshire Engineer Volunteer Corps was first formed in 1862 and then reformed in 1891 with special responsibility for the port defences of the South Coast of England. It carried out this role during World War I, as well as forming field units that served on the Western Front and at Salonika. Before the outbreak of World War II it formed an air defence regiment that saw service during The Blitz and field companies that fought in the Western Desert and Italy, The unit continued in the postwar Territorial Army before finally disbanding in 1967.
The 1st Durham Engineers, later Durham Fortress Engineers, was a Volunteer unit of the British Army's Royal Engineers. First founded in 1868 it was sometimes united with the Tyne Electrical Engineers, at other times it formed an independent unit. Although its main role was defence of the North East Coast of England, the unit sent detachments on active service to the Suakin Expedition, the Second Boer War, and the Western Front and Italy during the First World War.
The Tyne Electrical Engineers (TEE) is a Volunteer unit of the British Army that has existed under various titles since 1860. It has been the parent unit for a large number of units fulfilling specialist coastal and air defence roles in the Royal Engineers (RE) and Royal Artillery (RA), many seeing service during both World Wars. TEE companies currently form part of the RE and of the Royal Electrical and Mechanical Engineers in the Army Reserve.
The Cinque Ports Fortress Royal Engineers was a volunteer unit of Britain's Royal Engineers serving in the defences of Dover, one of the historic Cinque Ports. It provided detachments for field service in World War I and World War II, when they saw active service in Tunisia, Italy and Greece. Its lineal descendant continues to serve in the present day Army Reserve as a bomb disposal unit.
The City of Edinburgh (Fortress) Royal Engineers was a volunteer unit of the British Army under various titles from 1886 until 1999. Its main role was defence of the Firth of Forth, but it also provided detachments for active service in the field during both World Wars.
The Renfrewshire Fortress Royal Engineers was a Scottish volunteer unit of the British Army under various titles from 1888. Its main role was defence of the ports and shipyards on the River Clyde, but it also provided detachments for active service in the field during both World Wars. Its successors continue to serve in the Army Reserve.
The Dundee Fortress Royal Engineers was a Scottish volunteer unit of the British Army formed in 1908. Its main role was the defence of the harbours and shipyards on the River Tay, but it also provided a detachment that saw active service in North Russia at the end of World War I. In the 1930s, it was turned into an air defence unit, in which role it served in World War II. A brief postwar revival ended in disbandment in 1950.
The Aberdeen Fortress Royal Engineers was a Scottish volunteer unit of the British Army formed in 1908. Its main role was defence of the Scottish coast, but it served on the Western Front during World War I. In the 1930s it was converted into an air defence unit, in which role it served in World War II.
The 1st Lancashire Engineer Volunteer Corps was a Volunteer unit of Britain's Royal Engineers, first raised in 1860. It went on to spin off a unit of fortress engineers and provided a signals training centre during the First World War. Its successor units provided signal support for West Lancashire Territorial Army (TA) formations in the early stages of the Second World War, and for Eighth Army HQ during the Second Battle of El Alamein, the advance to Tunis, invasion of Sicily and through Italy, ending the war in Austria. Postwar successor units have continued in the TA and Army Reserve to the present day.
The Lancashire (Fortress) Royal Engineers was a volunteer unit of Britain's Royal Engineers formed in 1884 to defend the Mersey Estuary. As well as serving in this role it also provided specialist engineer units in both World Wars, losing many men in a shipping disaster during the Greek Campaign. Its descendants continued to serve in the Territorial Army until 1967.
The East Riding (Fortress) Royal Engineers was a volunteer unit of Britain's Royal Engineers formed for the defence of the Humber Estuary in the East Riding of Yorkshire. As well as serving in this role it also provided field and specialist engineer units in both World Wars. Its successors continued to serve in the Territorial Army until 1991.
The North Riding (Fortress) Royal Engineers was a volunteer unit of Britain's Royal Engineers formed for the defence of the Tees Estuary in the North Riding of Yorkshire. As well as serving in this role it also provided specialist engineer units in both World Wars. Its descendants continued to serve in the Territorial Army until 1999.
The Cornwall Fortress Royal Engineers, was a volunteer unit of Britain's Royal Engineers formed in 1908. It helped to defend the coastal towns of Cornwall and sent engineer units to work on the Western Front. Converted to an air defence role before World War I, it served as a searchlight unit during the Battle of Britain, the Blitz, then, as a light anti-aircraft gun unit, it served in the most heavily attacked part of the South Coast of England throughout 1942–44, including the V-1 flying bomb campaign.
The 1st Devonshire Engineer Volunteer Corps, later the Devonshire Fortress Royal Engineers, was a volunteer unit of Britain's Royal Engineers whose history dated back to 1862. The unit helped to defend the vital naval base of Plymouth, and supplied detachments for service in the field in both World Wars. During the North African campaign in the Second World War, the unit's sappers distinguished themselves in bridging the Nile and clearing minefields during and after the Second Battle of El Alamein. Their successors served on the postwar Territorial Army until 1969.
The Sussex Fortress Royal Engineers was a Territorial Force (TF) unit of Britain's Royal Engineers from 1908 to 1920. As well as coastal defence duties during World War I, the unit provided works companies for service on the Western Front.
The Glamorgan Fortress Royal Engineers was a Welsh Territorial Army (TA) unit of Britain's Royal Engineers, first raised in 1885 as a Volunteer unit of Submarine Miners to defend the Severn Estuary. During World War I it carried out defence work in England and Gibraltar, and detachments served on the Western Front. In World War II it served in the North African campaign, including the Second Battle of El Alamein, and the Allied invasion of Sicily. Postwar, the unit continued in the TA until 1961.
The 1st Gloucestershire Engineer Volunteer Corps was a Volunteer unit of Britain's Royal Engineers, serving from 1861 to 1908. A detachment of the unit served in the Second Boer War. Although the unit itself did not transfer to the Territorial Force in 1908, several descendant units did so, deriving their seniority from the 1st Gloucesters.
