 Complete the following phrase:  At Peronne the battery joined 47th Brigade RGA, assigned to III Corps. The gunners were unable to find suitable positions during the night of 2425 September, and left their gun platforms beside the road under guard. During the night one of the platforms received a direct hit from enemy fire. The guns were positioned the following night, and from 27 September took part in the preparatory bombardment for the assault on the Hindenburg Line the 