North Korea related

Descendants of the Sun has a few scenes involving North Korean / North Korean soldiers. For example: Descendants of the Sun - EP1 | North Korean & South Korean Soldiers Fight [Eng Sub].

Athena: Goddess of war  not alot of N.k bits tho (slight hint/spoiler: Kim Min Jong aka my bf) 

Iris   lol this one for sure

Cain and Abel

One of the female leads is from North Korea and there are a lot of references in North Korea as one of the male leads is mistaken for North Korean.