from 5 to 7 May were repulsed but on 14 June the heights and the village of Sondernach were captured. Metzeral fell several days later and on 22 June, the Germans retired from the west bank of the Fecht to a line from Mühlbach east to the Hilsenfirst. The French suffered and the 19th Reserve Division with attached units suffered An attack on the and from 20 to 22 July failed but the was captured on 27 July; local fighting went on at the into August. The supporting attacks had minimal artillery support, took less ground than the Tenth Army and cost another about of the casualties incurred in Artois. Aftermath Analysis On 9 May, five French corps had attacked two German divisions on a front and advanced on the front of the 5th Bavarian Reserve Division between the Lorette Spur and La Targette. The 77th Division and the DM of XXXIII Corps penetrated between Carency and Neuville, overran Regiment 39 and captured Hill 145, the highest point on Vimy Ridge The DM was then repulsed by local counter-attacks from Bavarian Infantry Regiment 7, which had been rushed forward from reserve. From 9 to 12 May the Tenth Army made the largest advance since trench warfare began, using the new tactics which caused the German defenders great difficulty, even on the flanks where the attacks were repulsed. The extent and tempo of the French plans proved too ambitious, given the material constraints affecting the Tenth Army and French munitions production. XXXIII Corps was forced off Vimy Ridge by German artillery-fire and flanking fire from Souchez and Neuville. A considerable tactical advantage had been gained by the French, who had regained of ground before the offensive was terminated. Foch wrote a report in early August in which he explained that the failure to hold Hill 145 was due to XXXIII Corps and the Tenth Army reserves being too distant and not deployed according to a proper reinforcement plan. At the beginning of the attack the XXXIII Corps reserve was a brigade of the DM, with a regiment at Mont St Éloi, behind the front and a regiment at Acq back, to keep them out of German artillery range. Three battalions were sent forward at half a battalion at and the rest of the battalion at to assist in consolidation and to be ready to defeat German counter-attacks, not to press on.