word | | Military service age and obligation |
| service | Mozambique | 18-30 years of age for compulsory military service; 2-year service obligation (2006) |
| service | Namibia | 18-25 years of age for voluntary military service; no conscription (2008) |
| service | Nepal | 18 years of age for voluntary military service; 15 years of age for military training; no conscription (2008) |
| service | New Zealand | 17 years of age for voluntary military service; soldiers cannot be deployed until the age of 18; no conscription (2008) |
| service | Nicaragua | 17 years of age for voluntary military service; tour of duty 18-36 months (2008) |
| service | Niger | 18 years of age for compulsory military service; 2-year conscript service obligation (2006) |
| service | Nigeria | 18 years of age for voluntary military service (2007) |
| service | Norway | 18-44 years of age for male compulsory military service; 16 years of age in wartime; 17 years of age for male volunteers; 18 years of age for women; 12-month service obligation ... |
| service | Oman | 18-30 years of age for voluntary military service; no conscription (2008) |
| service | Pakistan | 16 years of age for voluntary military service; soldiers cannot be deployed for combat until age of 18; the Pakistani Air Force and Pakistani Navy have inducted their first female pilots and ... |
| service | Papua New Guinea | 16 years of age for voluntary military service; no conscription (2008) |
| service | Paraguay | 18 years of age for compulsory and voluntary military service; conscript service obligation - 12 months for Army, 24 months for Navy (2006) |
| service | Peru | 18-30 years of age for voluntary male and female military service; no conscription (2008) |
| service | Philippines | 18-25 years of age (officers 21-29) for compulsory and voluntary military service; applicants must be single male or female Philippine citizens (2007) |
| service | Poland | 17 years of age for male compulsory military service after January 1st of the year of 18th birthday; 17 years of age for voluntary military service; conscript service obligation shortened from 12 ... |
| service | Portugal | 18 years of age for voluntary military service; compulsory military service ended in 2004; women serve in the armed forces, on naval ships since 1993, but are prohibited from serving in some ... |
| service | Qatar | 18 years of age for voluntary military service; no conscription (2008) |
| service | Romania | 18 years of age for voluntary military service; conscription officially ended October 2006; all military inductees (including women) contract for an initial 5-year term of service; subsequent voluntary service contracts are ... |
| service | Russia | 18-27 years of age for compulsory or voluntary military service; males are registered for the draft at 17 years of age; service obligation - 1 year; reserve obligation to age 50; foreign citizens ... |
| service | Rwanda | 18 years of age for voluntary military service; no conscription (2008) |
| service | Saint Kitts and Nevis | 18 years of age for voluntary military service; no conscription (2008) |
| service | San Marino | 16-55 for voluntary service in Voluntary Military Force (2006) |
| service | Senegal | 18 years of age for compulsory and voluntary military service; conscript service obligation - 2 years (2004) |
| service | Serbia | 19-35 years of age for compulsory military service; under a state of war or impending war, conscription can begin at age 16; conscription is to be abolished in 2010; 9-month service ... |
| service | Seychelles | 18 years of age for voluntary military service (younger with parental consent); no conscription (2008) |
| service | Sierra Leone | 17 years 6 months of age for voluntary military service (younger with parental consent); no conscription (2008) |