Scallywag bunker

Scallywag bunkers or Auxiliary Unit Operational Base/OB were underground bunkers used by GHQ Auxiliary Units of the British Resistance against axis invasion of the United Kingdom.^{[1][2][3][4][5]}

Operational Patrols consisted of between four and eight men, often farmers or landowners. They were usually recruited from the most able members of the Home Guard, possessed excellent local knowledge and were able to live off the land. Gamekeepers and even poachers were particularly valued.^[6] They were always intended to fight in Home Guard uniform and from 1942 the men were badged to Home Guard battalions 201 (Scotland), 202 (northern England), or 203 (southern England).^{[citation needed]}

Around 3,500 men were trained on weekend courses at Coleshill House, near Highworth, Wiltshire, in the arts of guerrilla warfare including assassination, unarmed combat, demolition and sabotage.^{[citation needed]}

Each Patrol was a self-contained cell, expected to be self-sufficient and operationally autonomous in the case of invasion, generally operating within a 15-mile radius. They were provided with elaborately-concealed underground Operational Bases (OB),^[7][8] usually built by the Royal Engineers in a local woodland, with a camouflaged entrance and emergency escape tunnel.^[9] It is thought that 400 to 500 such OBs were constructed in England, Wales and Scotland.^[9]

• Coleshill Auxiliary Research Team
• British anti-invasion preparations of the Second World War
• Hypothetical Axis victory in World War II
• Air raid shelter
• Blast shelter
• Fallout shelter
• Underground living

• The Secret Among the Secret
• Scallywag bunkers: geophysical investigations of WW2 Auxiliary Unit Operational Bases (OBs) in the UK
• Uncovered: the WW2 'Scallywag Bunkers' that were Britain's last-ditch line of defence
• World War 2 secret exposed: Churchill's 'last-ditch' strategy unearthed in secret bunkers
• CART Auxiliary Unit Research