Defence, attack and disuse
Since before Roman times, the coast of South East England has been the subject of many hostile invasion attempts. In the early days of the Second World War, with German forces just 20 miles away, the section of coast to the east of Dover now presented unique opportunities for the British. Previously used mainly for defence, land-based heavy artillery would be used for attacking shipping across the entire width of the Dover Strait in accordance with Prime Minister Winston Churchill's order 'to fight for command of the Strait by artillery'.
The gun batteries at Wanstone, on The White Cliffs of Dover held the largest, longest-range breech-loading weapons ever installed on mainland Britain. These huge guns could fire a shell weighing 1938lbs (900kg) 23.25 miles (37.2km or 40,920 yards) and saw much action during the War. They were installed along with an extensive network of smaller anti-shipping and anti-aircraft artillery that defended against invasion and controlled the Dover Strait and a key air route for attacks on London.
In September 1944, the guns' attention was turned to supporting the Canadian 8th Regiment as it moved northeast from the D-Day landings, capturing the German coast guns that had inflicted so much damage on Dover. The Wanstone guns were fired continuously until barrel wear reduced their range and they could no longer reach their targets, but not before they had inflicted devastating damage on Lindermann Battery.
Post-War
When peace returned, many of the guns had already fallen silent. A few were initially kept for training duties but by the mid-1950s, those remaining had either been put into storage, or, as in the case of Wanstone, the metal parts were cut up for scrap and the sites returned to agricultural use. Although the guns had been removed, much of the infrastructure remained. Some of the military roads were broken up to allow ploughing, but many of the massive, reinforced concrete and brick structures were too costly to demolish. The emplacements and some buildings were partly or completely buried, but many were left to ultimately be reclaimed by nature, some becoming vandalised in the process. By the mid-1980s, most of the gun sites had become a wilderness of brambles, hawthorn and blackthorn.
You can read more about the history of the gun batteries at Wanstone: Wanstone Battery, D2 Heavy Anti-Aircraft Battery and Fan Bay Battery in our brief history articles.