The current autonomous technology limits the combat mission of UAVs, but if the weakness of the autonomy can be compensated with robust networks and crowding flights, the attritable UAVs can effectively respond to dominant enemy threats. The United States is developing the low cost and attritable UAVs and upgrading operational concepts to block China's challenge.
This paper suggested that low-cost and attritable UAVs can effectively perform surveillance and reconnaissance, initial response, etc. on threats of North Korean and neighboring countries by a combined operational concept with man and unman. With the development of autonomous technology, the roles of the low cost and attritable UAVs will be expanded.

This thesis to review the US military's total force policy and reform of the reserve forces in the 1970s and establish a new concept for the reserve forces of the ROK by reflecting its implications. Priming the reserve forces into an elite force is to nurture the reserve to the level of the active so that the reduced the standing force loss can be substantially reinforced. For this, the concept of the reserve forces as a total force is required to be expanded to the unit level like the standing force, and related systems must also be developed. In particular, there is an urgent need to develop the combat power for the mobilization division that can integrate and combine with the Standing Division as the front reinforcement force in the early stages of the war.

Since Recently, KR/FE and UFG exercises have been replaced by new low-intensity exercises, and even those are implemented due to the COVID-19 incident. In this current situation, this paper diagnosed the problem of reducing or delaying the ROK-U.S. joint military exercise, and furthermore, the problem of the military exercise structure, and suggested the direction of development.

The purpose of this article is to compare and analyze the current state of defense cost-sharing of Korea, Japan, and Germany, and based on this, suggest the direction for Korea's improvement in defense cost-sharing. There are six criteria for comparative analysis: ① determination method, ② support target, ③ calculation method, ④ method of provision, ⑤ transparency of execution, and ⑥ initiative of the host country. Implications can be drawn through comparative analysis.
Future directions for improvement in Korea's defense cost-sharing include changing the cost-sharing method, refraining from expanding support targets, establishing a consistent defense cost-sharing method, establishing a multi-year SMA validity period, securing transparency in defense cost execution, and securing subjectivity in defense cost execution. In addition, the size of the share of defense cost should be appropriate.

In the environment of procuring various high-tech weapon systems, maintenance budget grew at an annual rate of 6.5 percent for last fourteen years(2008-2021). The rate is much higher than the growth rate of the other operating & support budget, 3.9 percent. In particular, aircraft maintenance budget were increasing more steeply with 7.0 percent because more new aircraft are procured and maintenance policy is highly regulated and safety critical. This study aims to develop maintenance cost estimating relationships for creating analytic application on Air Force fighter aircraft individually. Utilizing the budget documentations and information systems related to maintenance, 8 fighter aircraft operated from 1988 to 2019 are analyzed. Thirty regression models created for each aircraft by combining various variables and data periods are compared using Diebold-Mariano test with two criteria of   and MAPE. Maintenance cost estimation of an individual aircraft is important for setting budgets and for deciding when to replace aging systems. In addition, results from this study provide insight on when to start using actual O&S costs as a baseline for estimates in lieu of an analogous aircraft that has no sufficient cost data.