Osprey Publishing - The raid on the French port of St Nazaire in March 1942 was one of the most daring commando operations of the war. The port lay at the mouth
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submarine pens st nazaire france the submarine pens built to protect german u boat submarines during second world war Stock Photo - Alamy
![submarine pens st nazaire france the submarine pens built to protect german u boat submarines during second world war Stock Photo - Alamy submarine pens st nazaire france the submarine pens built to protect german u boat submarines during second world war Stock Photo - Alamy](https://c8.alamy.com/comp/A6FD4B/submarine-pens-st-nazaire-france-the-submarine-pens-built-to-protect-A6FD4B.jpg)