The Drop Redoubt is a derelict artillery fort on the Western Heights cliffs, overlooking Dover. It was built during the Napoleonic Wars to guard against French invasion. Its strategic location at England’s closest point to continental Europe also saw it used in a defensive role during both World Wars.

The name is derived from ‘The Drop’, which is the name formerly given to the area in which it is situated, with ‘Redoubt’ meaning detached fort.