Ships & Models by Erick Navas - A submarine pen (U-Boot-Bunker in German) is a type of submarine base that acts as a bunker to protect submarines from air attack. The term
![Production still from Das Boot, U-96 leaves the pens in La Rochelle | German submarines, Wwii fighter planes, Submarines Production still from Das Boot, U-96 leaves the pens in La Rochelle | German submarines, Wwii fighter planes, Submarines](https://i.pinimg.com/originals/d3/23/d3/d323d392756715ef69a963c804dd0dd9.jpg)
Production still from Das Boot, U-96 leaves the pens in La Rochelle | German submarines, Wwii fighter planes, Submarines
![Discover the submarine base and the three ports - Compagnie Interîles Promenades en mer in La Rochelle - La Rochelle Tourisme Discover the submarine base and the three ports - Compagnie Interîles Promenades en mer in La Rochelle - La Rochelle Tourisme](https://www.holidays-la-rochelle.co.uk/sites/default/files/styles/sit_full/public/sit/images/5862870/10206049.jpg?itok=ibtrqVSq)