 Complete the following phrase:  Once on active service, he was hit in the leg by shrapnel near Bazentin, France on 9 August 1916, during the Battle of the Somme. The leg was marked for amputation but was saved after being operated on by a German POW surgeon. After recovering back in Britain, Crossan was posted to the 4th Battalion to serve in the Sinai and Palestine Campaign and he was present during the 