Battle of Bazentin Ridge

The Battle of Bazentin Ridge, launched by the British Fourth Army at dawn on 14 July 1916, marked the start of the second phase of the Battle of the Somme. Dismissed beforehand by one French commander as "an attack organized for amateurs by amateurs", it turned out to be "hugely successful" for the British, in contrast to the disaster of the first day on the Somme. However, like the first day, the British failed to exploit their advantage in the wake of the victory and as German resistance stiffened, a period of bloody attrition commenced.

• http://en.wikipedia.org/wiki/Battle of Bazentin Ridge