Battle of the Somme Opens on Western Front

Context

By late 1915 the Western Front had settled into a stalemate of opposing trench systems stretching from the North Sea to the Swiss border. At the Chantilly Conference in December 1915, Allied commanders agreed on coordinated offensives for 1916 to prevent the Central Powers from shifting reserves between fronts. The Franco-British contribution was to be a major attack astride the Somme River in Picardy, where the British Expeditionary Force and French armies met.

What Happened

German operations at Verdun beginning in February 1916 forced French planners to reduce their Somme commitment, making the British Fourth Army under General Sir Henry Rawlinson the principal attacking force supported by the French Sixth Army to the south. After a week-long artillery preparation that began on 24 June, eleven British divisions advanced at 7:30 a.m. on 1 July across a front roughly fifteen miles wide north of the Somme. German machine-gun positions that had survived the bombardment inflicted heavy losses on the advancing infantry, particularly north of the Albert–Bapaume road. French forces achieved modest gains south of the river against less heavily defended sectors.

Aftermath

The first day produced approximately 57,000 British casualties, the highest single-day total in the army’s history, while French losses were far lighter. The offensive continued with limited advances until November, eventually driving a salient several miles deep into German-held territory but failing to achieve its original operational goals of capturing Péronne and Bapaume.

Legacy

The battle introduced tanks to combat in September 1916 and underscored the difficulty of breaking prepared defenses with massed infantry. Total casualties exceeded one million across five months, reinforcing the image of industrialized slaughter that dominated postwar memory in Britain and the Commonwealth. Historians continue to debate its strategic necessity as a means of relieving pressure at Verdun and wearing down German reserves.