The British and Commonwealth armies on the Western Front would have been defeated without the steady supply and use of horses and mules. They were lost by the thousand.
Some of the fiercest fighting ever witnessed in the Alps started in May 1916 between the forces of Austro-Hungary and Italy. Could Italy hold the line or would their armies crack?
Budyonny's dreaded First Cavalry Army could have changed the course of history had it supported the Bolshevik drive on Warsaw. Stalin's jealousy and stiff Polish resistance doomed the entire enterprise to defeat.
Christmas 1914 witnessed one of the First World War's most unusual events: a temporary ceasefire across large sections of the Western Front, primarily between British and German forces. What really happened?
Bloodhounds of Berlin
A revolution erupted across Germany in the wake of the country's defeat on the Western Front. Events in the nation's capital would determine whether the country remained democratic or veered towards the Bolshevik model.