This map was used by my grandfather, who served in France during the First World War with the Artists' Rifles ... The main British trenches are all named, many bearing names that must relate ...

Britain and its Empire lost almost a million men during World War One; most of them died on the Western Front. Stretching 440 miles from the Swiss border to the North Sea, the line of trenches ...

(See how World War I energized mapmaking at National Geographic.) Photographed in 1917, an endless line of Russian soldiers sit patiently in a trench as they anticipate a German attack. National ...