Britain's Secret Defences

Andrew Chatterton's book reveals the clandestine British plans to recruit, train, and equip civilians for guerrilla warfare, intelligence gathering, and post-invasion resistance against Nazi forces.

Drawing on 12 years of archival and archaeological research, it uncovers the stories of highly motivated volunteers who signed the Official Secrets Act and prepared for ruthless operations, challenging myths of Britain's poorly planned defences.

The narrative highlights auxiliary units across the UK, ready to disrupt infrastructure, assassinate collaborators, and support escape lines if invaded.