Do immigrants have to do military service when they go to Korea?

South Korea implements compulsory military service. Korean men must perform military service between the ages of 20 and 30, depending on their physical condition, and the arms and service time range from 2 to 4 years. In Korea, active service at 1-5 level requires military service:

Level 5 is already a person who has had a serious illness but can live independently. Short-term military theory training.

Level 4 health, you can try simple military training 1 year.

Level 3, 22 months, physically injured but recovered well, and can perform military tasks.

The second level is 26 months, which is basic active service.

1 grade is 3 years, in excellent health, engaged in related industries, generally the air force and navy.

In Korea, most people are concentrated in the second and third grades. It seems that level 2 is the most, and the general distribution is military assignment, but the background of active servicemen will be taken into account. For example, my Korean student's brother is an English major at Seoul National University, so it is possible to give full play to his strengths and send Hong Jingmin to the Propaganda Department when he is assigned for military service, because he is a singer, but this is not absolute. It is possible to enter the artillery and armored forces.