English: Vlastimil Blahák (* 30 January 1905 in Tvarožná u Brna - 21 March 1979 in Prague). After graduating in 1924 from the real school in Brno, he graduated from the Military Academy in Hranice na Moravě, which he finished in 1925 as a lieutenant of the engineer army. From 1928 he studied at the Czech Technical University (ČVUT) in Prague, where in 1932 he received the degree of surveying engineer and in 1936 he defended the degree of doctor of technical sciences. This was followed by military studies at the Military College in Prague (from autumn 1936) and in 1937 in Paris at L'Ecole militaire. In 1938 he served at the General Staff in Prague with the rank of staff captain. After the dissolution of the First Republican Army - during the Protectorate of Bohemia and Moravia - he joined the anti-German resistance in military resistance organisations in the vicinity of Prague. He was deputy commander of the "Prague-West" group and was also involved in the "Defence of the Nation" and "Faithful Dog" organizations. After his arrest on 28 October 1941, he was imprisoned in Pankrác in Prague, Dresden and Berlin, where the Germans sentenced him to death on 30 November 1942. While being transferred between Nazi prisons, he managed to escape in the confusion during an air raid. He hid near Prague until the end of the Second World War, only to join the organisation of the Prague May Uprising on 2 May 1945. From 1948 to 1951 he was the commander of the Military Geographical Institute in Prague. At the same time he was a professor at the Military University and an associate professor at the Czech Technical University in Prague. He was retired in 1952 and from 1953 he was a professor and head of the Department of Geodesy and Cartography at the University of Transport in Žilina. He died on 21 March 1979 in Prague.