62nd Division was back in the line on 12 September for the Battle of Havrincourt, for which 185th Bde was in reserve. On 25 September near Marcoing the battalion took 350 prisoners as the BEF prepared to assault the German Hindenburg Line along the Canal du Nord. The Battle of the Canal du Nord began on 27 September. After 3rd Division had crossed the canal, 62nd Division passed through to take Ribécourt and make a deep advance into the German positions. However, 185th Bde's flank was open, and it suffered serious casualties in the advance, finally being pushed back by counter-attacks into the Hindenburg support trench. The division renewed the attack over the following days, but although it took Masnières on 29 September, it could not capture Rumilly that day or the next. The 1/5th Devon and 2/8th West Yorkshires formed the right wig and were threatened with being enveloped, but made good use of 40 Germans machine guns they had captured. They were withdrawn with their 150 prisoners that night so that the artillery could prepare the ground for the next day's attack by other formations.