 The division was then relieved on 25 July, when it moved south into the line opposite Guillemont in the Somme sector.On 8 August, two infantry brigades of the division carried out an attack on Guillemont.For the whole of the previous day and up to Zero hour (04.20) on 8 August, the divisional artillery and heavy guns kept up a continuous bombardment (described as 'awe-inspiring') of the enemy positions, particularly Guillemont village, which was known to be strongly fortified.