1. Germany and its approaches : with international boundaries as of September 1, 1939, the day Germany invaded Poland and, in red, boundaries as of January 1, 1938, before Germany seized Austria and Czechoslovakia Yale Public content 1944. 2002-12-09T14:36:53Z. 2020-06-11T03:01:18Z. National Geographic Society (U.S.). Cartographic Section, cartographer, publisher. The Section,Printed by A. Hoen and Co., lithographers. English. cartographic image. Public. Germany. 1933-1945.