July 1, 1916: The Battle of the Somme
British "Tommies" emerging from the trenches and "going over the top" July 1, 1916: The Battle of the Somme breaks out, along the River Somme, outside Ovillers-la-Boisselle, 100 miles north of Paris. It becomes the 2nd-longest battle of World War I, behind the Battle of Verdun -- which started earlier in the year, and finished after the Somme -- and is the war's largest battle in terms of manpower. On one side: Imperial Germany, with 1 million men, commanded by Rupprecht, Crown Prince of Bavaria. On the other side: France, defending their homeland with 1.3 million men, commanded by Marshal Ferdinand Foch; and Britain, assisting their ally with 1.2 million men, commanded by General Douglas Haig. Douglas Haig The 1st day at the Somme was one of the few days on which the Allies made significant progress in World War I. But it was also one of the bloodiest: In one day, the British lost 19,240 men. To put that in perspective: America lost its mind when nearly 60,000