"현역 군인" refers to active-duty military personnel who are currently serving in the armed forces. These individuals are engaged in various roles, including combat, support, and administrative tasks, depending on their branch of service. They are trained to respond to national defense needs and may be deployed to different locations for missions. In many countries, including South Korea, being a 현역 군인 is often mandatory for young men, typically requiring a period of service. This duty is crucial for maintaining national security and readiness, and it involves rigorous training and discipline to prepare soldiers for various challenges they may face in the field.