The Battle of Arras is now over. The battle began as a diversion, an attempt to draw German attention away from the French offensive in the Chemin des Dames sector. Great initial successes were achieved but as the battle went on it became more like the typical Western Front meat-grinder battle.
The offensive should have been wound down once the French offensive began, but when it became apparent that the French were suffering a disaster in the Chemin des Dames Haig kept the attacks going. Now though the battle is at an end. The British and their Commonwealth allies have suffered just under 160,000 casualties. German losses are around 130,000.
With Arras over, Haig is now free to plan for his summer offensive, a planned major assault on the German lines at Ypres in Flanders. Haig hopes to break through the German lines and clear them from the Belgian coast, eliminating the German naval bases that have been threatening Allied shipping in the Channel.
Canadian machine gunners, Vimy Ridge (Wikipedia)