What does Cao Cao mean by recruiting troops for Mazu Lingqian?

Military service registration is generally held in September every year in the whole country, which is also called the registration of school-age youth. If you want to join the army, you should go to the local township at this time (the armed forces department of the street office will conduct military service registration); The national conscription work conference is generally held on1October 20th 10 every year, followed by provincial and municipal conscription work conferences and district (county) conscription work conferences, all of which ended around 5438+00 on June 25th. Before 5438+00 at the end of June, all the recruits basically arrived. The physical examination time is uniformly set as 165438. After entering 65438+February, he began to leave the army.