Hasa (Corporal)
Overview
Hasa (下士) is the lowest level of the non-commissioned officer ranks in the Republic of Korea Armed Forces, positioned above the enlisted rank of byeongjang (sergeant) and below jungsa (staff sergeant). Under military personnel law, non-commissioned officers are defined as cadres who perform the unit's practical combat, administrative, and technical duties between commissioned officers and enlisted personnel, and hasa is the rank that serves as the starting point. In the ROK Armed Forces, one must generally serve at least four years after appointment to be eligible for promotion review to jungsa, giving hasa the character of an 'entry stage in an NCO career.'
Position in the rank system
The enlisted ranks of the ROK Armed Forces run in the order of private (i-deungbyeong) → private first class (il-deungbyeong) → corporal (sang-deungbyeong) → sergeant (byeongjang), and above sergeant continue the NCO ranks of hasa → jungsa → sangsa → wonsa. In other words, hasa is 'the first rank in the transition from enlisted soldier to non-commissioned officer.' The Army, Marine Corps, and Air Force use the same title, hasa, while the Navy may subdivide the title according to branch and specialty. The junwi (准尉) warrant officer rank is a separate rank system distinct from NCOs.
Appointment and Promotion
Hasa are appointed after completing each service's NCO training institution (such as the Army NCO School and the Navy/Air Force NCO candidate courses) or after going through the application and selection process for NCOs while serving as an enlisted soldier. After appointment, one must complete the minimum service period stipulated by military personnel law to undergo promotion review to jungsa; promotion is determined by comprehensive evaluation of performance, certifications, awards, unit recommendations, and other factors. The required period and evaluation criteria may vary by branch and specialty.
Roles and Duties
Hasa assist in the command and control of squad-level and lower units and handle practical duties such as squad leader, assistant platoon leader, administration, supply, maintenance, and communications. As the cadres closest to the soldiers, they perform roles such as training control, management of barracks life, guidance in garrison life, and equipment maintenance. In addition, depending on specialties such as communications, maintenance, medical service, and cooking, they serve as technical specialists and play a key role in maintaining unit functions. For this reason, hasa are evaluated as 'the link connecting enlisted personnel and cadres at the forefront of combat power.'
History and Terminology
The name 'hasa (下士)' originates from traditional East Asian military rank terminology, and after the modern era, as Western military systems were introduced, it was established within the 'non-commissioned officer (hasagwan, 下士官)' system. The ROK Armed Forces have had the hasa rank since the founding of the military, and the current system took shape as the NCO training system was reorganized in the 1960s–1970s. In the past, the term 'hasagwan' was widely used, but since the 1990s the name has been standardized as 'busa-gwan' (non-commissioned officer).
Comparison with Foreign Militaries
In the U.S. military, the Army's Corporal (E-4) corresponds to hasa, while the Navy's Petty Officer Third Class and the Air Force's Senior Airman, among others, occupy similar positions. In the Japan Self-Defense Forces, 3rd Class Land Sergeant (3等陸曹) corresponds to hasa. The boundary between enlisted personnel and NCOs, appointment methods, and treatment levels differ greatly by country, with differences appearing especially in status and treatment as professional soldiers.
Treatment and Working Conditions
Unlike enlisted soldiers, hasa have the status of professional soldiers (cadres), and the salary, allowance, and welfare systems apply to them. Improving the treatment of junior NCOs has long been treated as a key task in securing military manpower, and support is being expanded in areas such as housing, certification acquisition, employment linkage after discharge, and degree program support.
Recent Trends
The biggest topics in defense manpower policy in 2024–2025 are the decline in the application rate for junior NCOs and the expansion of skilled cadres. As the hasa application rate has fallen due to shortened enlisted service periods and a preference for civilian jobs, the Ministry of National Defense is pursuing improvements in treatment for junior NCOs (pay raises and expanded housing, medical, and self-development support), reorganization of NCO training courses, and stronger incentives for outstanding soldiers to transition to NCOs. In addition, increasing the proportion of female NCOs, training NCOs centered on specialized technical specialties, and expanding selection for long-term service are being carried out in parallel, and discussions are continuing on making the promotion and assignment system more flexible through amendments to the Military Personnel Act and related laws.
Related Topics
- [[Non-commissioned officer]]
- [[Jungsa]]
- [[Byeongjang]]
- [[Military Personnel Act]]
- [[Rank system of the Republic of Korea Armed Forces]]