Video: 'The Great War - S01E05 - This Business May Last a Long Time' (Sept. 5, 1914, at 1:16)

(Saturday, September 5, 1914, noon CET; during World War I) — The Battle of the Marne, a counterattack of six French field armies and the British Expeditionary Force (“BEF”) against the German Imperial Army along the Marne River, began today, setting the state for four years of trench warfare on the Western Front.

Video: 'The Great War episode 2 Stalemate' (Battle of the Marne at 40:37)