The intimidation of the Made in Korea tiger camouflage uniform (tiger stripe pattern) worn during Captain Baek Ki-tae's era.

If you encounter a grandfather who wore tiger stripe camouflage (which is different from the reserve forces uniform) during the Vietnam War, you should be careful.
They were soldiers who experienced actual combat, even entering avoided areas where even US Special Forces members would not go, to hunt down Viet Cong.
If Baek Ki-tae is a KCIA Director who was a soldier who survived entering those avoided areas during the Vietnam War, it feels like Baek Ki-tae won't die in this drama.
When I was serving in the military, there was a Sergeant Major who had fought in the Vietnam War wearing tiger stripe combat uniforms;
when I looked into those red eyes, I could feel a chilling murderous intent beneath his warm smile.