The sites of three possible Second World War anti-aircraft batteries are visible on aerial photographs of 1946 as earthworks to the north-west of Lade. They are located not far to the WSW of a possible PLUTO (Pipeline Under the Ocean) pumping site (Monument Number 1533740), which they may have been intended to defend. By the time of the next available vertical aerial photograph of 1959; they had all been removed or levelled. These features were mapped from aerial photographs as part of the South East RCZAS NMP project.