Despite the abundance of research available on English for specific purposes and English language education for professionals, addressing the lack of insight on how the native English teachers function in a specialization field to help the language learners should be analyzed. The discussion here is to see what is needed for the civilian language instructors to work in a military sector where the core curriculum is developing military officers. By reviewing the chapter from Higbee’s (2012) Military Culture and Education, the members in the Korean military education and training institutions, along with ESP researchers should start asking necessary questions to further enhance the ESP and professional language development programs for the ROK military. The complexity of ESP in the military sector requires multiple layers of language training and education as language learner’s additional specialization is merged with the basic framework of a professional soldier or an officer. A doctor might encounter ESP that is designed within the framework of the medical field, but a combat engineer in a military requires language designed for both the soldiers and an engineer. The paper is to encourage further research and analysis of the English language education development that will support ESP for the ROK military and how the native English instructors should be prepared to assist in professional language development for ROK military officers.