Eberhard Maertens
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Eberhard Maertens
Erhard Maertens or Eberhard Maertens (26 February 1891 – 5 May 1945) was a German Vizeadmiral of the Kriegsmarine during World War II. From 16 June 1941 to 5 May 1943, he was Chief of Office of Naval Intelligence, Naval War Command () in the Oberkommando der Marine. Maertens was known for underestimating British intelligence, and specifically, overrating the security of the Naval Enigma machine, Enigma cipher machine. In 1941, he held a naval enquiry into the strength of Naval Enigma security after the capture of U-boat HMS Graph, U-570, and attributed all the suspicious losses in U-boats at the time to the British High-frequency direction finding, Huff-Duff. In the second enquiry, ordered by the Commander-in-Chief of the Navy () Karl Dönitz, in May 1943, he investigated a number of areas, which exculpated Enigma security in the end, for the second time, incorrectly blaming British 9.7 centimetre centimetric radar for the massive B-Dienst#Summary 2, losses in U-boats by mid 194 ...
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Głogów
Głogów (; , rarely , ) is a city in western Poland. It is the county seat of Głogów County, in Lower Silesian Voivodeship. Głogów is the sixth largest town in the Voivodeship; its population in 2021 was 65,400. Among the oldest towns in Poland, Głogów was founded in the 10th century as a Piast defensive settlement and obtained city rights in the 13th century from Konrad I, Duke of Głogów, Duke Konrad I. It is known for one of the most important medieval Polish defensive battles against German incursions. Due to the town's strategic location on several trade routes, the townspeople received many privileges and benefits, which brought wealth and greatly reflected on the city's architecture. From 1251 to 1506, it was the capital of a Duchy of Głogów, small eponymous duchy ruled by a local line of the Piast dynasty and by future Kings of Poland from the Jagiellonian dynasty. Over time, Głogów grew to be one of the largest fortified towns in Lower Silesia. The demolition ...
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