Operation Yorck
(Prussian field marshal of the early 19th century)'Yorck' was a U-boat wolfpack operation in the Norwegian Sea to tackle any Allied invasion attempt (12/26 March 1942).
The wolfpack comprised U-135, U-553, U-569 and U-701, and neither lost any of its number nor sank any ship.
Basic overview
Start date: 12 March 1942
End date: 26 March 1942
Scope: Minor
Nature: Sea, Anti-ship/submarine
Status: Implemented
End date: 26 March 1942
Scope: Minor
Nature: Sea, Anti-ship/submarine
Status: Implemented