text: Although the Canadian Corps had taken Vimy Ridge, difficulties in securing the south-eastern flank had left the position vulnerable. To rectify this, British and Canadian troops launched an attack towards Arleux on 28 April. The village was captured by Canadian troops with relative ease but the British troops advancing on Gavrelle met stiffer resistance. The village was secured by early evening but when a German counter-attack forced a brief retreat, elements of the 63rd (Royal Naval) Division were brought up as reinforcements and the village was held. Subsequent attacks on 29 April failed to capture more ground. The attacks achieved the limited objective of securing the Canadian position on Vimy Ridge but casualties were high and the result was disappointing.
  Third Battle of the Scarpe (3–4 May 1917)
  After securing the area around Arleux at the end of April, the British determined to launch another attack east from Monchy to try to break through the  and reach the , another German defensive position in the Douai Plain. This was scheduled to coincide with the Australian attack at Bullecourt to present the Germans with a two–pronged assault. British commanders hoped that success in this venture would force the Germans to retreat further to the east. The British launched another attack using regiments from the 4th Division near the Scarpe on 3 May. Neither effort made a significant advance and the attack was called off the following day after incurring many casualties. The British learned important lessons about the need for close liaison between tanks, infantry and artillery, which they used in the Battle of Cambrai, 1917.
  Flanking operations (Round Bullecourt, 11 April – 16 June)
  First attack on Bullecourt