- Second World War (1939-1945)
- Flight Lieutenant
- No. 2 Service Flying Training School, Royal Canadian Air Force
- Awarded on:
- January 1st, 1944
"This officer as a flying instructor and presently as Examining Officer has been outstanding in the execution of his duties. By his quiet determination, cheerfulness and efficiency he has been a continuous source of inspiration to junior instructors and trainees. Flight Lieutenant Armstrong has devoted every effort in obtaining the best results from the pupils under his charge which has been exemplified in the many excellent pilots trained by him."