What does the selective service system do?

The Selective Service System is an agency of the U.S. government that maintains information on those eligible for military conscription, or the draft, in the event of a national emergency. It requires most male U.S. citizens and immigrants aged 18 to 25 to register, ensuring that the government can quickly mobilize personnel if needed. The system also helps manage the draft process, should it be reinstated, and supports various military personnel programs.