ANTIAIRCRAFT ARTILLERY COMMAND, EASTERN DEFENSE COMMAND
Shoulder Sleeve Insignia
A scarlet convex triangle 2 1/2 inches (6.35 cm) in diameter, point to base, the stylized letter "C" between three stylized letters "A" in triangle, all gold.
The stylized letters "AAAC" represent the Antiaircraft Artillery Command. Red is the color of Artillery and yellow represents searchlights.
The shoulder sleeve insignia was approved on 21 September 1942.