The 1916 Battle of the Somme caused a total of 1 million casualties on all sides. the total is over a million casualties. The Allies had gained very little ground. At the end of the battle, they had gained only 7 miles and were still about 3 miles short of their goal from the first day of the war. The Somme, along with Verdun and the Brusilov Offensive, were among the bloodiest in world history up to that point. According to John Keegan, the Battle of the Somme was the greatest British tragedy of the twentieth century: “The Somme marked the end of an age of vital optimism in British life that has never been recovered.” For many, the battle exemplified the ‘futile’ slaughter and military incompetence of the First World War. Yet a more professional and effective army emerged from the battle. And the tactics developed there, including the use of tanks and creeping barrages, laid some of the foundations of the Allies’ successes in 1918. The Somme also succeeded in relieving the pressure on the French at Verdun. Abandoning them would have greatly tested the unity of the Entente. One German officer described the Battle of the Somme as ‘the muddy grave of the German Field Army’. That army never fully recovered from the loss of so many experienced junior and non-commissioned officers.