On 2 October 2006, eight protesters (Emma Bateman, Irene Willis, Lesley Anderson, Melanie Harrison, Leslie Grahame, Margaret Moss, Peter Lux, and Richard Rushmer) cut through the fence and ‘locked on’ to the munitions dump with the cluster bombs.
For a full account of the action and subsequent court case see: https://www.plux.co.uk/cluster-bomb-action-the-lakenheath-8/