Australian light horseman using a periscope rifle, Gallipoli 1915. The periscope rifle was a rifle attached to the contraption you see in the photo. The goal here was to take aim and fire the weapon without exposing one's head and shoulders above the parapet. The effectiveness of the device was questionable, especially since firing the next shot required operating the bolt.

Australian light horseman using a periscope rifle, Gallipoli 1915

All quiet on the Western Front: A skeleton, its arm across its neck, of a German soldier at Beaumont Hamel. Britain lost her army of volunteers in the trench battles north of the River Somme in late 1916. Total British, French and German casualties were in the region of 1,200,000 killed, wounded or captured. Taken by Ernest Brooks.

Skeleton of a German soldier at Beaumont Hamel. 1916

A lone Australian sentry keeps watch (Lt. Ernest Brooks; Fleurbaix, France; June 1916

scrapironflotilla: “ Australian sentry on duty in the trenches near Fleurbaix (Fromelles), June Due to the high water table in the ground around Fleurbaix the trenches were actually above ground.

Battle of the Somme. Men of the 11th Battalion The Cheshire Regiment, near La Boisselle July 1916. Photo by Ernest Brooks.

A German trench occupied by British troops near the Albert-Bapaume road at Ovillers-La Boisselle, July 1916 during the Battle of the Somme. The men are from A Company, Battalion, The Cheshire Regiment.

The Wiltshire Regiment Attacking near Thiepval by Ernest Brooks

British infantry from The Wiltshire Regiment advancing to the attack through the wire near Thiepval, during the Battle of the Somme, August 1916

''A field surgery at Cape Helles.'' by Ernest Brooks. Gallipoli, 1915 #WWI

A field surgery in one of East Lancashire Division's Field Ambulances. A surgeon removes a bullet from a soldier wounded during fighting at Cape Helles. Photo by Ernest Brooks

Over Top: 1916 by Ernest Brooks (via Imperial War Museums)

s Liverpool Reg, Div, practicing an attack near Blaireville, Wailly April

Ernest Brooks

World War I destroyed kings, kaisers, czars and sultans; it demolished empires; it introduced chemical weapons; it brought millions of women into the work force.

Taken by Ernest Brooks during the Battle of Broodseinde, showing a group of soldiers of the 8th East Yorkshire Regiment moving up to the front

British soldiers moving forward during the Battle of Broodseinde. Photo by Ernest Brooks.