word | | Military service age and obligation |
| military | Cuba | 17-28 years of age for compulsory military service; 2-year service obligation; both sexes subject to military service (2006) |
| military | 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; women may volunteer for a 3-year ... |
| military | Czech Republic | 18-28 years of age for voluntary and 19-28 for compulsory military service (2008) |
| military | 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 ... |
| military | Djibouti | 18 years of age for voluntary military service; 16-25 years of age for voluntary military training; no conscription (2008) |
| military | Dominican Republic | 18 years of age for voluntary military service (2007) |
| military | Ecuador | 20 years of age for selective conscript military service; 12-month service obligation (2008) |
| military | Egypt | 18-30 years of age for male conscript military service; service obligation 12-36 months, followed by a 9-year reserve obligation (2008) |
| military | 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) |
| military | Equatorial Guinea | 18 years of age (est.) for compulsory military service (2008) |
| military | Eritrea | 18-40 years of age for male and female voluntary and compulsory military service; 16-month conscript service obligation (2006) |
| military | 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) |
| military | Fiji | 18 years of age for voluntary military service; reserve obligation to age 45 (2006) |