The first day of the battle of the Somme, 1 July 1916, saw 60,000 British casualties. By late fall 1916 over 1,000,000 combatants had been killed, with no discernible objective gained. Arguably, the battle changed the course of British social history for the remainder of the 20th century.
The photos, published by The Independent may be seen here. It does take a while to get through all.