- Second World War (1939-1945)
- The Regina Rifle Regiment, 7th Canadian Infantry Brigade, 3rd Canadian Infantry Division (The Regina Rifle Regiment, 7th Canadian Infantry Brigade, 3rd Canadian Infantry Division)
On 6 June 1944, this NCO crawled forward from the beach with an LMG while under heavy MG fire. He located an enemy position which was being supported by enemy riflemen from slit trenches and with the assistance of two riflemen, cleaned out the enemy position. During this time, they were under fire from another enemy LMG. It was due to this effort that the remainder of the coy were able to move forward and to get into buildings on the regiments right flank.
It was afterwards discovered that during this time, Lance/Sergeant Armstrong had been wounded while on the beach, a bullet having passed right through one leg and grazing the other. When asked by his coy command about his wound, he showed the leg that was only grazed. After taking out an LMG position, he crawled back to his coy under fire, pinpointed another LMG position and then crawled back to support the coy with fire while it did a flanking movement.
He remained in command of his men during the remainder of the morning, leading them forward with a LMG and only returned to the beach dressing station when ordered to do so by his coy command at approximately 1400 hours 6 June 1944.