2. Switzerland
Military service is mandatory for Swiss men.
As recently as 2017, Switzerland was considering adding women to its draft roles.
3. Israel
Israeli men must serve in the defense force for three years.
Women are conscripted for two years.
Transgender Israelis have been allowed to serve since 1993.
4. Norway
Norway was the first NATO country to expand conscription to include women. It was also one of the first countries in the world to allow transgender people to serve, changing its policy in 1973.
The country's conscription is selective; everyone has to register but won't necessarily be called to serve.
5. China
Although China does mandate military service, it has routinely exceeded recruitment goals and has not needed to force conscription.
6. Iran
Conscription is mandatory for Iranian men, who must serve from 18 months to two years.
7. North Korea
North Korea has the longest conscription period in the world.
Men are required to serve for 10 years, starting at age 17.
Women must serve for seven years.
8. Egypt
Egyptian men must serve for a period of one to three years, depending on their level of education.
9. Austria
In Austria, men can choose between six months of military service and nine months of civil service.
Austria has allowed transgender troops to serve since 2004.
10. Meanwhile, other countries like Taiwan are getting rid of conscription altogether.
Taiwan pledged in 2011 to end conscription. The country is moving closer towards its goal of an all-volunteer force, but is facing hurdles as younger generations are choosing not to serve.