Complex sentence: The Canadian Corps made their debut on the Somme on the left flank the attack with the Canadian 2nd Division advancing approximately two kilometres and capturing their assigned objective of Courcelette and the area surrounding the village.
Split into simpler sentences: The Canadian Corps made their debut on the Somme on the left flank. The attack with the Canadian 2nd Division advancing approximately two kilometres and capturing their assigned objective of Courcelette and the area surrounding the village.