Glossary of terms and abbreviations
Name: Dead letter drops
Explanation:
Used by civilian spies or couriers of the Special Duties Branch for leaving messages which were picked up and distributed by runners.
Name: Div
Explanation:
Division. Military unit, typically consisting of between 10,000 and 30,000 soldiers.
Name: Div HQ
Explanation:
Divisional headquarters
Name: DoB
Explanation:
Defence of Britain Project. Volunteers of the DoB project recorded nearly 20,000 20th-century military sites.