The importance of comprehensive security at the national level has been emphasized with direct and indirect experiences with various disasters, terrorism, and cyber events since 2000 along with the Corona 19 incident. Futhermore, there is a demand for an active role expansion against non-traditional threats at the defense level. Accordingly, the Ministry of Defense has emphasized omnidirectional security threats, including non-traditional threats, as the core contents of the basic defense policy and defense reform. However, the disaster field is still recognized as a concept of an ancillary mission that utilize the remaining capacity of the defense. Therefore, the role of the military was re-established in order to expand its role in the disaster field more actively in the wake of the Corona 19 incident, and a direction of development was suggested to efficiently perform the perform the role of the military.