 Being seen as a low priority for Highlander replacements, and having suffered noted casualties, previously in the gas blow-back of The March Raid (27 Killed, 161 Casualties), and the Battle of Vimy Ridge in the assault onto Hill 145 (31 Killed, 189 Wounded), it was withdrawn from battle and ordered to dissolve on 16 April 1917.Now commanded by Lieutenant-Colonel H.C. Sparling, DSO, the 73rd Battalion was disbanded, on 19 April 1917, broken up for reinforcements, they being absorbed largely by the 13th (RHC) Battalion and the 42nd (RHC) Battalion, as well as the affiliated units in the 12th Brigade, and the 85th (NSH) Battalion.The 73rd Battalion was awarded the following battle honours, perpetuated by