word | | Military service age and obligation |
| voluntary | Belize | 18 years of age for voluntary military service; laws allow for conscription only if volunteers are insufficient; conscription has never been implemented; volunteers typically outnumber available positions by 3:1 (2008) |
| voluntary | Benin | 21 years of age for compulsory and voluntary military service; in practice, volunteers may be taken at the age of 18; both sexes are eligible for military service; conscript tour of duty ... |
| voluntary | Bermuda | 18-23 years of age; eligible men required to register for conscription as needed into the Bermuda Regiment, which is largely voluntary; term of service 39 months (2007) |
| voluntary | Bhutan | 18 years of age for voluntary military service; no conscription (2008) |
| voluntary | Bolivia | ... volunteers falls short of goal, compulsory recruitment is effected, including conscription of boys as young as 14; 15-19 years of age for voluntary premilitary service, provides exemption from further military service (2008 |
| voluntary | Bosnia and Herzegovina | 17 years of age for voluntary military service in the Federation and in the Republika Srpska; conscription abolished January 2006; 4-month service obligation (2006) |
| voluntary | Botswana | 18 is the apparent age of voluntary military service; the official qualifications for determining minimum age are unknown (2001) |
| voluntary | Brazil | ... for compulsory military service; conscript service obligation - 9 to 12 months; 17-45 years of age for voluntary service; an increasing percentage of the ranks are "long-service" volunteer professionals; women were allowed ... |
| voluntary | Brunei | 18 years of age (est.) for voluntary military service; non-Malays are ineligible to serve (2007) |
| voluntary | Bulgaria | 18-27 years of age for voluntary military service; conscript service obligation - 9 months; as of May 2006, 67% of the Bulgarian Army comprised of professional soldiers; conscription ended as of 1 January ... |
| voluntary | Burkina Faso | 18 years of age for compulsory military service; 20 years of age for voluntary military service (2001) |
| voluntary | Burma | 18 years of age for voluntary military service for both sexes; forced conscription of children, although officially prohibited, reportedly continues (2007) |
| voluntary | Burundi | 16 years of age for compulsory and voluntary military service; children as young as 10 years of age have been conscripted into the armed forces; the enrollment of children is still not ... |
| voluntary | Cameroon | 18 years of age for voluntary military service; no conscription; the government makes periodic calls for volunteers (2006) |
| voluntary | Canada | 17 years of age for male and female voluntary military service (with parental consent); 16 years of age for reserve and military college applicants; Canadian citizenship or permanent residence status required; maximum ... |
| voluntary | Central African Republic | 18 years of age for compulsory and voluntary military service; 2-year conscript service obligation (2006) |
| voluntary | Chile | 18-45 years of age for voluntary male and female military service, although the right to compulsory recruitment is retained; service obligation - 12 months for Army, 22 months for Navy and Air Force ... |
| voluntary | China | ... of age for selective compulsory military service, with 24-month service obligation; no minimum age for voluntary service (all officers are volunteers); 18-19 years of age for women high school graduates who ... |
| voluntary | Colombia | 18-24 years of age for compulsory and voluntary military service; service obligation - 18 months (2004) |
| voluntary | Congo, Republic of the | 18 years of age for voluntary military service; women allowed to serve (2007) |
| voluntary | Cote d'Ivoire | 18 years of age for compulsory and voluntary military service (2008) |
| voluntary | Croatia | 18-27 years of age for compulsory military service; 16 years of age with consent for voluntary service; 6-month conscript service obligation; full conversion to professional military service by 2010 (2006) |
| voluntary | Cyprus | ... of age for compulsory military service for all Greek Cypriot males; 17 years of age for voluntary service; females are not conscripted; age of military eligibility 17 to 50; length of normal ... |
| voluntary | Czech Republic | 18-28 years of age for voluntary and 19-28 for compulsory military service (2008) |