![](https://www.historynet.com/wp-content/uploads/2017/08/WW-1200x480.jpg)
Fred Leist’s “Attack in Polygon Wood” depicts the moment in September 1917 when Australian troops assaulted a line of German pillboxes—one of many small clashes that comprised the drawn-out Battle of Passchendaele. (Fred Leist/Australian War Memorial)
Fred Leist/Australian War Memorial