According to the search results, there are several countries that require military service. The following countries have mandatory military service:

• Algeria: 12 months for males aged 19-30
• Angola: 24 months for males aged 20-45
• Argentina: De jure - 12-24 months for males aged 18-24, depending on the branch of service; voluntary enlistment for women
• Austria: 6-9 months of armed service or 9 months of civilian service for males aged 17-50; voluntary enlistment for women
• Belarus: 18 months of armed service or 3 years of civilian service for males aged 18-27; voluntary enlistment for women
• Bolivia: 12 months for males aged 18-49
• Brazil: 9-12 months, can be extended to a max of 7 years; the conscript may be discharged by excess of contingent
• Colombia: 1-2 years depending on MOS and branch
• Cyprus: 14-24 months for males aged 18-50; 18 months of civilian service for conscientious objectors
• Denmark: 4 months of basic training and 8-12 months of additional service for males aged 18-30; voluntary enlistment for women
• Egypt: 12-36 months for males aged 18-30
• Estonia: 8-11 months of armed service or 11 months of civilian service for males aged 18-27; voluntary enlistment for women
• Finland: 6-12 months of armed service or 9-12 months of unarmed service for males aged 18-30; voluntary enlistment for women
• Greece: 9 months of armed service or 12 months of civilian service for males aged 19-45
• Iran: 21-24 months for males aged 18-41
• Israel: 24-32 months for males aged 18-21; 21 months for females aged 18-20
• Kazakhstan: 12 months for males aged 18-27
• Kyrgyzstan: 12 months for males aged 18-27
• Mexico: 12-16 months for males aged 18-40
• Norway: 19 months of armed service or 12 months of civilian service for males aged 19-44; voluntary enlistment for women
• Russia: 12 months for males aged 18-27
• Singapore: 22-24 months for males aged 18-21
• South Korea: 18-21 months for males aged 18-28
• Switzerland: 18-21 weeks of basic training and 260 days of additional service for males aged 18-34; voluntary enlistment for women
• Taiwan: 4 months of basic training and 1 year of additional service for males aged 19-35[[1]](https://worldpopulationreview.com/country-rankings/countries-with-man...