During the Second World War, Warlingham was witness to the Battle of Britain, much of which was fought in the skies above this part of Surrey. The former RAF bases of Biggin Hill and Kenley were within a few miles of Warlingham in either direction, and from there fighters would intercept German bombers navigating their way up to London along the valley between Warlingham and Woldingham (then known as 'Bombers' Alley'). Warlingham War Memorial is the most prominent feature breaking up a lightly wooded, shop-surrounded green in the village. It is a simple yet poignant monument dedicated to the great many local people who made sacrifices during the two world wars in the 20th Century.