Recent spikes in searches for “WWIII” and “US draft age limit” show growing public anxiety as global tensions rise, especially in the Middle East. Although the U.S. ended mandatory military service in 1973, about 16.4 million men aged 18–25 are still registered with the Selective Service.

Registration is required by law and must be done within 30 days of turning 18. Those who don’t comply risk jail or fines. A draft could only return with approval from both Congress and the President. Once triggered, the system has up to 193 days to begin conscription.

A lottery system would randomly select birth dates, starting with 20-year-olds. Selected men would be screened at Military Entrance Processing Stations (MEPS) for medical and psychological fitness. Many could be exempted for health, family, or education reasons. “More than 40% of those called in earlier drafts didn’t serve,” the article notes.

Conscientious objectors could serve in non-combat or civilian roles. Volunteering for support jobs, like logistics, may also affect assignments. Although the military is now voluntary, the draft system remains ready and, if ever reactivated, would be applied fairly and transparently.