The possibility of a military draft in the United States is often seen as something from the past. However, the system behind it still exists and is carefully maintained. If a draft were reinstated, it would not happen chaotically but through a structured process run by the Selective Service System (SSS). This system can quickly move from a dormant database to full mobilization, potentially affecting millions of citizens almost overnight.

The process would begin with the “Lottery Phase.” Instead of calling everyone at once, the system follows a strict order based on age. Men turning 20 in the current year are called first. A televised lottery would draw 366 capsules representing each birth date. The order determines a “Random Sequence Number” for every registered man. A low number means a high chance of being drafted, while a high number offers a better chance of avoiding service. If needed, the system would expand to ages 21 through 25, and then include 19- and 18-year-olds.

Being selected does not automatically mean entering the military. Draftees must pass several administrative and medical evaluations. Local Boards made up of civilian volunteers review cases involving “Hardship Deferments” or “Conscientious Objector” claims. Someone may argue they support a disabled family member or hold moral or religious beliefs against military service. These boards decide whether such requests are valid.

Health screening is another key stage. Each potential recruit would undergo detailed physical and psychological testing at a Military Entrance Processing Station. Modern standards consider mental health and chronic conditions more carefully than in earlier wars. Because of this, many people could be disqualified for issues like asthma, severe allergies, or orthopedic problems.

The system also addresses education and essential professions. Long-term student deferments have mostly been removed, although some students might finish a semester or final year. At the same time, certain specialists in fields like healthcare, defense manufacturing, or cybersecurity may be assigned to critical support roles rather than combat.

Currently, the law applies only to “male persons,” even though women have been eligible for combat roles since 2015. While proposals to include women have been debated, the rule has not changed. For now, the Selective Service remains a “Standby” system—quietly maintained as a national backup plan if a major emergency ever requires it.