During World War II the fort was briefly armed with a 40mm Bofors gun and Gun Laying Radar was fitted outside the fort to direct the guns of the nearby Gilkicker Anti-Aircraft gun site. In the build-up to D-day a signals unit occupied the fort and during the Normandy landings on 9 June over 1,000 signals were recorded for the day needing routing to over 1300 addresses. Later an average of 800 signals to almost 1,000 addresses were routed via Gilkicker. The fort was the site of artillery exercises in 1953.