A second version of the Towers on the east coast shore of Delaware. During World War II, soldiers monitored the same coastlines of Delaware as they searched for approaching enemy ships or stealthy submarines. The towers were used in pairs to triangulate large defense guns at Cape Henlopen Delaware. Soldiers would take readings on offshore targets. Those readings would then be radioed back to a gunnery room at Fort Miles. The Towers still stand up and down the coast like this one near Fenwick Island.