- Period:
- Second World War (1939-1945)
- Rank:
- Major
- Awarded on:
- September 25th, 1945
For extraordinary heroism in connection with military operations against an armed enemy on 21 April 1945. Major Mackenzie was in command of the 6th Battalion of the Seaforth Highlanders which led the attack toward the River Elbe. Many scattered pockets of enemy resistance were encountered, and Major Mackenzie's quick and accurate decisions, sound planning and brilliant leadership were in a large measure responsible for the outstanding success of the operation. His coolness and personal bravery were an inspiration to all ranks.
Headquarters, European Theater of Operations, U.S. Army, General Orders No. 264