Operation AD
'AD' was a British naval minelaying operation in the Humber estuary (24/25 October 1939).
The operation was undertaken by the cruiser minelayer Adventure, which departed Sheerness on the southern side of the Thames river estuary on 24 October.
Basic overview
Start date: 24 October 1939
End date: 25 October 1939
Scope: Minor
Nature: Sea, Minelaying
Status: Implemented
End date: 25 October 1939
Scope: Minor
Nature: Sea, Minelaying
Status: Implemented