Conscripts are for two years, and the law stipulates that everyone has the obligation to perform military service. The scope stipulated here is conscripts. In other words, in the past two years, the country has recruited you as a soldier, and you must be a soldier. . However, there are far more people who want to be soldiers than the places they actually find, so basically no one who doesn't want to be a soldier is forced to be a soldier. Now that the conscripts are retired, they are not matched.
It used to be called a volunteer army, but now it is called a sergeant. That is, conscripts who want to continue to be soldiers after two years can apply to become non-commissioned officers. Petty officers sign every few years. If you are willing to be a soldier, and the army thinks your quality is up to standard, you can always be a non-commissioned officer. After the non-commissioned officers retire, the state will give some resettlement policies.