UN peacekeeper in Sudan

Hello my name is Victor, I am from Peru and now I am serving on a United Nations mission in Sudan. I am a Marine Officer and married chinese girl last year. She is now having my kid and I would like to visit her. I could apply visa from Khartoum embassy but it will waste my time during my leave period. So I would like to apply from Korea, cause I always wanted to visit there and buy some presents for my family. I hold a special passport from my country. Is it possible to apply visa from Seoul?