Comments on: A German pill-box at Ypres France, a place that saw large Australian casualties. Pill-boxes were built of concrete with sides 1 – 2 metres thick to allow soldiers to endure bombardments. Photograph Capt. F. Hurley, August 1917- August 1918. Courtesy State Library of New South Wales http://www.migrationheritage.nsw.gov.au/exhibition/enemyathome/german-australian-community/attachment/sl-ypres-1917a479021h/ documenting Australia's migration history hourly 1 http://wordpress.org/?v=3.6.1