The battle of Albert, 1-13 July 1916, is the official name for the British efforts during the first two weeks fighting of the first battle of the Somme. As such it includes the first day of the Somme, the most costly day in British military history and one that has coloured our image of the First World War ever since
The battle of Pozières Ridge, 23 July-3 September 1916 was part of the first battle of the Somme. It was the official name given to fighting between the River Ancre and the village of Bazentin le Petit, with the village of Pozières in the centre of the line.
The battle of Guillemont, 3-6 September 1916, was the official name given to the fighting that captured the village of Guillemont during the first battle of the Somme.
The battle of Flers-Courcelette, 15-22 September 1916, was the third main phase of the battle of the Somme. It is best known as the first tank battle in history