Found in | The naval war in the Baltic 1939-1945, ©2017: title page (Poul Grooss) front flap (Poul Grooss is a retired Danish Navy Captain who commanded torpedo boats and guided-missle corvettes in a career that lasted more than 40 years, during which time he also served as an intelligence officer and a Russian-speaking Soviet analyst at the height of the Cold War. He is a teacher of naval warfare at the Royal Danish Naval Academy, Chairman of the Naval History Society of the Royal Danish Naval Museum and a tour guide on military history expeditions to the Eastern Front).
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