#24, Battle of Arras: The Bloody Prelude That Swallowed 280,000 Men
The Battle of Arras from April 9 to May 16, 1917, consumed approximately 278,000 total casualties, 158,000 British and Commonwealth and 120,000 German. The British daily casualty rate at Arras, 4,076 per day, was higher than at the Somme, Passchendaele, or any other British battle of the war, making it statistically the most lethal sustained engagement the British Expeditionary Force ever fought.
The opening day was stunning. Canadian Corps troops stormed Vimy Ridge in a meticulously planned assault that captured in hours what the French had failed to take in two years of fighting at a cost of 150,000 casualties. Underground tunnels quarried from medieval chalk mines allowed 24,000 troops to advance unseen to within yards of German trenches. But after the first day's success, the battle devolved into the familiar Western Front pattern: each mile of advance multiplied casualties while defenders reinforced faster than attackers could exploit. The offensive was meant to support the French Nivelle Offensive on the Aisne, which failed catastrophically and triggered mutinies in 54 French divisions. Arras continued grinding for five more weeks with diminishing returns, consuming a generation of British soldiers for territorial gains measured in hundreds of yards.
