D. Thomas Curtin, The Land of Deepening Shadow: Germany-at-War
“ CHAPTER XX THE WAR SLAVES OF ESSEN Essen, the noisiest town in the world, bulks largely in the imagination of the Entente Allies, but "Essen" is not merely one city. It is a centre or capital of a whole group of arsenal towns. Look at your map of Germany, and you will see how temptingly near they are to the Dutch frontier. Look at the proximity of Holland and Essen, and you will understand the Dutch fear of Germany. ”
