| Country | Military service age and obligation |
| Czech Republic | 18-28 years of age for male and female voluntary military service; no conscription (2011) |
| 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 following completion of their conscript service; women eligible to volunteer for military service (2004) |
| Dhekelia | void |
| Djibouti | 18 years of age for voluntary military service; 16-25 years of age for voluntary military training; no conscription (2008) |
| Dominica | void |
| Dominican Republic | 16-21 years of age for compulsory military service; recruits must be Dominican Republic citizens; women may volunteer (2010) |
| Ecuador | 20 years of age for selective conscript military service; 12-month service obligation (2008) |
| Egypt | 18-30 years of age for male conscript military service; service obligation 12-36 months, followed by a 9-year reserve obligation (2008) |
| El Salvador | 18 years of age for selective compulsory military service; 16-22 years of age for voluntary male or female service; service obligation - 12 months, with 11 months for officers and NCOs (2009) |
| Equatorial Guinea | 18 years of age for selective compulsory military service; service obligation 2 years; women hold only administrative positions in the Coast Guard (2011) |
| Eritrea | 18-40 years of age for male and female voluntary and compulsory military service; 16-month conscript service obligation (2006) |
| Estonia | obligation for compulsory service ages 16-60, with conscription "likely" ages 18-27; service requirement 8-11 months (2009) |
| Ethiopia | 18 years of age for voluntary military service; no compulsory military service, but the military can conduct callups when necessary and compliance is compulsory (2011) |
| European Union | void |
| Falkland Islands (Islas Malvinas) | void |
| Faroe Islands | void |
| Fiji | 18 years of age for voluntary military service (2010) |