In line with the trend of the Fourth Industrial Revolution, cloud computing services are actively introduced and operated by individuals, businesses and public institutions, and continue to evolve into many advantages, including improved work efficiency and effectiveness. The military also needs to operate cloud computing services, but it is currently operating only at a limited number of units, including the Education units. Although there are security-related limitations to running a cloud environment due to the nature of defense operations, it is necessary to introduce cloud computing services despite overcoming the challenges of security. Changing from an environment without cloud computing services to a smart work environment such as mobile offices is expected to be difficult to evolve. Previous research focused on risk factors, security measures, and limited operational measures for introducing cloud computing services to the defense, but no studies were made to use the service as an overall service to the defense. Therefore, through this study, we will apply a Value-Based Adoption Model (VAM) to analyze the factors influencing the use of cloud computing services to the defense and devise effective measures to use them in full scale based on the results obtained.