Beautiful Gunbari is a Manga/Manhwa/Manhua in english language, Slice of life series, english chapters have been translated and you can read them here. You are reading chapters on www.mgeko.cc fastest updating comic site. The Summary is

What if women had to go to military service as well? an action packed slice of life manhwa that shows you the true power of women! Join Su-ah as she shares her personal experience being in the army.