<p>In 1943, thirty-two Irish POWs refused a Gestapo request to work for Germany. They were sent to a labour camp, where they were starved, beaten and forced to dig the foundations for a Nazi super-structure codenamed Bunker Valentin - an immense U-boat factory. Thousands of the camp's prisoners perished, including five of the Irishmen; bodies fell into the foundations and were never recovered. The surviving Irishmen were saved by the goodwil...