Skip to main content

What Countries Require Mandatory Military Service?

by
Last updated on 7 min read

As of 2026, 30+ countries maintain mandatory military service, including South Korea, Israel, Switzerland, Russia, and North Korea. Conscription policies vary wildly—from 4 months in some places to 13 years in others, and the rules often depend on both nation and gender.

Which country has the longest mandatory military service?

North Korea tops the list, with men serving 11 years and women serving 7.

That’s not a typo. The country’s “Songun” ideology prioritizes military might above all else, so they keep conscripts around for over a decade. South Korea, right next door, requires just 18–21 months for men. Then there’s Eritrea—officially capping service at 18 months since 2022, but reports suggest some conscripts serve up to 18 years anyway. These extreme durations usually tie back to national security fears and regional conflicts.

Which country requires mandatory military service?

Over 60 countries enforce some form of mandatory military or national service, including South Korea, Israel, Switzerland, Sweden, Austria, Denmark, Finland, Estonia, Greece, Lithuania, Norway, Singapore, and Taiwan.

Most of these systems focus on able-bodied men, but Israel and Norway include women too. Sweden and Finland take a gender-neutral approach—if you’re fit, you could get called up. Denmark and Austria let you swap military service for civilian work after 4–12 months. Sweden brought back conscription in 2017 because of rising security threats, and now both men and women face potential call-ups based on national needs.

Is military service mandatory for US citizens?

Nope—the U.S. doesn’t force anyone into the military, but all male citizens and male immigrants aged 18–25 must register with the Selective Service System.

It’s the law under the Military Selective Service Act. The U.S. hasn’t run a draft since 1973, but the Selective Service stays on standby in case the country needs to ramp up fast. Women can serve in any military role since 2016, but they don’t have to register. Skip registration, and you could lose federal student aid, government job eligibility, or even face fines. The last draft call went out during the Vietnam War—no one’s been forced since.

What countries have conscription?

As of 2026, 30+ nations still use conscription, including South Korea, Israel, Switzerland, Finland, Estonia, Greece, Lithuania, Sweden, Norway, Singapore, Taiwan, Turkey, and the UAE.

Europe used to have twice as many conscription countries back in the early 2000s, but most switched to volunteer forces. Germany and Spain suspended theirs entirely. Sweden bucked the trend in 2017, and Lithuania just extended service to 9 months in 2024 because of regional tensions. Most conscription systems let you opt for civilian service if you’re a conscientious objector.

What is Korean mandatory military service?

South Korea requires all able-bodied men aged 18–28 to serve in the armed forces—usually 18–21 months, depending on their branch and role.

Women can volunteer but aren’t forced into service. Since 2022, K-pop stars and elite athletes get a “cultural exemption,” letting them delay service until age 30. Some roles, especially in special forces, stretch to 3 years. The government insists conscription is non-negotiable for defending against North Korea. When they’re done, veterans get job placement help and education subsidies.

How long is Korean mandatory military service?

Standard service lasts 18–21 months, depending on whether you’re in the Army, Navy, Air Force, or Marine Corps.

Marines usually draw the longest straw at 21 months, while some technical jobs wrap up in 18. For comparison, Singapore and Thailand demand 22–24 months, Israel requires 22–32 months for men and 24 for women. North Korea’s the real outlier—11 years for men, 7 for women. South Korea’s actually trimmed service time since the 2000s to keep up with modernization and volunteer growth.

Does Switzerland have an army?

Yes—Switzerland fields a well-armed land and air defense force, known as the Swiss Armed Forces (Schweizer Armee).

Every fit Swiss man must serve, typically starting with 245 days of training and then additional drills over 10 years. Women can join voluntarily. Switzerland’s militia system keeps gear at home, so they can mobilize over 200,000 troops within days. Neutrality and local defense are the cornerstones of their military strategy.

How many years do you have to serve in the army to retire?

You’ll need at least 20 years to qualify for a military retirement pension in the U.S. and most NATO countries.

In the U.S., your pension is 2.5% of your highest 36 months of basic pay for each year served. Twenty years nets you 50% of base pay; 30 years gets you 75%. Most Western militaries use similar formulas. Shorter stints might get you a one-time severance check, but not lifetime benefits. Some countries let you tap partial pensions after 15–18 years. Exact rules depend on rank and nation.

Did 17 year olds fight in Vietnam?

Yes—they could enlist with parental consent, and some were drafted once they turned 18.

The military allowed 17-year-olds to sign up if their parents agreed, and draft calls could hit them right after their 18th birthday. Private James Calvin Ward, killed in Vietnam in 1965, was one of the youngest U.S. combat fatalities at just 17. By 1971, the military raised the minimum enlistment age to 18. Today, all branches require applicants to be 18 (or 17 with parental consent), and no one under 18 can be sent to combat zones.

Do females have to register for Selective Service?

No—women aren’t required to register in the U.S.

As of 2026, only men aged 18–25 must sign up, including transgender men who were assigned female at birth. Congress has floated bills to expand registration to women, but none have passed yet. The U.S. Supreme Court upheld male-only registration in 2021 (Rumsfeld v. Fairfax). That said, women can serve in any military role and can volunteer. Israel and South Korea, among others, have gender-neutral conscription.

What happens if you don’t register for the draft?

Skipping Selective Service registration is a felony—punishable by up to 5 years in prison and/or a $250,000 fine.

On top of that, you could lose federal student aid, government jobs, job training programs, and even U.S. citizenship if you’re an immigrant. Some states block driver’s license renewals or professional licenses for non-registrants. Signing up is free, takes minutes, and must be done within 30 days of turning 18. Late registrations after age 26 are possible, but you might still face penalties. The government rarely hunts down non-registrants, but compliance matters for future opportunities.

Can you be drafted at age 35?

No—current U.S. law caps draft eligibility at age 25.

The Selective Service can only induct men aged 18–25, with the highest priority going to 19–21-year-olds. Back in 1951, President Truman’s draft law set the range to 19–26, but later tweaks brought it down. The law still mentions men up to 45, but that’s only for militia eligibility—not actual drafting. The last draft to include men over 26 was during Vietnam. Now, 25 is the hard cutoff.

Why was conscription a bad thing?

Critics argue conscription tramples personal freedom, disrupts education and careers, and forces young adults into high-risk service without real consent.

Research from the Pew Research Center shows conscripts often struggle with PTSD and reintegration long after service. The system can also favor the privileged, since exemptions and deferments aren’t evenly distributed. Ethical debates rage over whether a state should have that kind of power. Many countries ditched conscription for volunteer forces, claiming it boosts morale, retention, and operational readiness.

Can you be forced to join the military?

In countries with mandatory service, yes—you can be legally compelled to join.

Take South Korea, Switzerland, or Israel. Skip your duty, and you could land in prison, face heavy fines, or even lose your citizenship. These aren’t volunteer programs—they’re orders backed by law. Some nations offer civilian alternatives for objectors, but refusing entirely usually leads to serious consequences. In volunteer militaries like the U.S., joining is technically optional, though economic pressures can make it feel mandatory for some.

Is conscription legal in the US?

It’s legal under federal law but hasn’t been used since 1973.

You’ll find the authority in 10 U.S. Code § 246, which covers drafting men aged 17–45 (and certain women) for militia service. The draft ended decades ago, though men 18–25 still must register with Selective Service. Courts have shot down challenges to gender discrimination in registration, and the Supreme Court upheld male-only draft rules in 2021. The legal framework exists, but political and social opposition keeps it dormant.

Edited and fact-checked by the MeridianFacts editorial team.
James Cartwright

James Cartwright is a geography writer and former high school geography teacher who has spent 20 years making maps and distances interesting. He can name every capital city from memory and insists that geography is the most underrated subject in school.