The Battle of Arras, 1917
1. Initially the attack in April 1917 was a success as the British advanced 5 miles into enemy territory
2. However, by May 1917 the attack had virtually stopped with the Allies suffering 160,000 casualties
3. First large scale attack by British tanks to attack the German front line, over 450 tanks were used
4. No artillery bombardment used, which surprised the Germans. The British attack succeeded at first, helped by tanks