word | | Military service age and obligation |
| service | 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) |
| service | Cuba | 17-28 years of age for compulsory military service; 2-year service obligation; both sexes subject to military service (2006) |
| service | Cyprus | Greek Cypriot National Guard (GCNG): 18-50 years 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 ... |
| service | Czech Republic | 18-28 years of age for voluntary and 19-28 for compulsory military service (2008) |
| service | Denmark | 18 years of age for compulsory and voluntary military service; conscripts serve an initial training period that varies from 4 to 12 months according to specialization; reservists are assigned to mobilization units ... |
| service | Djibouti | 18 years of age for voluntary military service; 16-25 years of age for voluntary military training; no conscription (2008) |
| service | Dominican Republic | 18 years of age for voluntary military service (2007) |
| service | Ecuador | 20 years of age for selective conscript military service; 12-month service obligation (2008) |
| service | Egypt | 18-30 years of age for male conscript military service; service obligation 12-36 months, followed by a 9-year reserve obligation (2008) |
| service | El Salvador | 18 years of age for selective compulsory military service; 16 years of age for voluntary service; service obligation - 8 months, but 11 months for officers and NCOs (2008) |
| service | Equatorial Guinea | 18 years of age (est.) for compulsory military service (2008) |
| service | Eritrea | 18-40 years of age for male and female voluntary and compulsory military service; 16-month conscript service obligation (2006) |
| service | Estonia | compulsory military service for men between 19 and 28; conscription lasts 11 months for junior NCOs and reserve platoon leaders; reserve officers and designated specialists have a different conscript service obligation; Estonia ... |
| service | Ethiopia | 18 years of age for compulsory and voluntary military service; theoretically, no compulsory military service, but the military can conduct call-ups when necessary and compliance is compulsory (2008) |
| service | Fiji | 18 years of age for voluntary military service; reserve obligation to age 45 (2006) |
| service | Finland | 18 years of age for male voluntary and compulsory national military and nonmilitary service; service obligation 6-12 months (2008) |
| service | France | 17-40 years of age for male or female voluntary military service); no conscription; 12-month service obligation; women serve in noncombat military posts (2005) |
| service | Gabon | 20 years of age for compulsory and voluntary military service (2007) |
| service | Gambia, The | 18 years of age for voluntary military service; no conscription (2008) |
| service | Georgia | 18 to 34 years of age for compulsory and voluntary active duty military service; conscript service obligation - 18 months (2005) |
| service | Germany | 18 years of age (conscripts serve a 9-month tour of compulsory military service) (2004) |
| service | Ghana | 18 years of age for voluntary military service; no conscription (2008) |
| service | Greece | 19-45 years of age for compulsory military service; during wartime the law allows for recruitment beginning January of the year of inductee's 18th birthday, thus including 17 year olds; 17 years ... |
| service | Guatemala | all male citizens between the ages of 18 and 50 are liable for military service; conscript service obligation varies from 12 to 24 months; women can serve as officers (2007) |
| service | Guinea | 18 years of age for compulsory military service; 2-year conscript service obligation (2006) |