Complex sentence: He held the rank of Private and was in the 11th Battalion of the Highland Light Infantry, he was injured on the 23/04/1917 when his battalion came under fire at the Battle of Cavalry Farm at Monchy Le Preux which is north of Arras.
Split into simpler sentences: He held the rank of private and was in the 11th Battalion of the Highland Light Infantry. He was injured on 23 April 1917 when his battalion came under fire at the Battle of Calvary Farm at Monchy Le Preux which is north of Arras.