Book excerpt: Under the Iron Heel, first published in 1941, is a firsthand account of the German invasion and occupation of Belgium in the early days of World War II. The author, an American scientist who was trapped in Belgium at the time of the invasion, reports on daily life for the civilian populace under the Germans (restrictions, food shortages, resistance efforts, etc.), and also includes insightful reports on the experiences of typical German soldier, based, in part, on talks with the many soldiers billeted at his hotel. Author Möen was able to leave Belgium for the safety and freedom of neutral Portugal in late 1940. Included are 18 pages of illustrations.