U-Boat Base
- Episode aired Jul 27, 2013
- TV-PG
- 57m
From PBS - Examine the impenetrable submarine pens the Nazis built to protect U-boats from Allied attacks. Such was their size and strength that these pens survive today, a testament to thei... Read allFrom PBS - Examine the impenetrable submarine pens the Nazis built to protect U-boats from Allied attacks. Such was their size and strength that these pens survive today, a testament to their engineering.From PBS - Examine the impenetrable submarine pens the Nazis built to protect U-boats from Allied attacks. Such was their size and strength that these pens survive today, a testament to their engineering.