'The first tread-way bridge built across the Isonzo river' is in the background, a destroyed bridge in the foreground, and another under construction. Austrian and German soldiers watch POWs — most likely Italian — draw carts, and cut and trim logs. 'In the background our trenches', and dozens of horse-drawn wagons waiting to cross the tread-way bridge. (The quotations are from a handwritten note on the reverse; translation Thomas Faust.)
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Isonzo Riverthe Isonzo River, which flowed through Austro-Hungarian territory just east of its border with ItalyThe Battles of the IsonzoFirst Battle of the Isonzo, June 23, 1915 to Second Battle of the Isonzo, July 18 to August 3, 1915, 42,000 Italian casualties, 47,000 Austro-HungarianThird Battle of the Isonzo, October 18 to November 4, 1915, 67,000 Italian casualties; 42,000 Austro-HungarianFourth Battle of the Isonzo, November 11 to early December, 1915, 49,000 Italian casualties; 25,000 Austro-HungarianFifth Battle of the Isonzo, March 11, 1916, 13,000 Italian casualtiesSixth Battle of the Isonzo, August 6 to 17, 1916, casualties: 100,000 Italian; 50,000 Austro-HungarianSeventh Battle of the Isonzo, September 13, 1916Eighth Battle of the Isonzo, September 30, 1916Ninth Battle of the Isonzo, November 1, 1916, casualties: 39,000 Italian; 33,000 Austro-HungarianTenth Battle of the Isonzo, May 12 to 28, 1917Eleventh Battle of the Isonzo, August 19 to September 19, 1917, casualties: 166,000 Italian, 40,000 of them dead; 140,000 Austro-HungarianTwelfth Battle of the Isonzo, the Battle of Caparetto, October 21 to November 12, 1917
Isonzo River is a river.