word | | Military service age and obligation |
| voluntary | Kenya | 18 years of age (est.) for voluntary service, with a 9-year obligation (2007) |
| voluntary | Korea, South | ... military branch involved (to be reduced to 18 months beginning 2016); 18 years of age for voluntary military service; women, in service since 1950, admitted to 7 service branches, including infantry, but ... |
| voluntary | Kuwait | 18 years of age for compulsory and voluntary military service; reserve obligation to age 40 with 1 month annual training; women have served in police forces since 1999 (2006) |
| voluntary | Latvia | 18 years of age for voluntary military service; conscription abolished January 2007; under current law, every citizen is entitled to serve in the armed forces for life (2006) |
| voluntary | Lebanon | 18-30 years of age for voluntary military service; no conscription (2007) |
| voluntary | Lesotho | 18 years of age for voluntary military service; no conscription (2008) |
| voluntary | Liberia | 16 years of age for voluntary military service; no conscription (2008) |
| voluntary | Luxembourg | 17-25 years of age for male and female voluntary military service; soldiers under 18 are not deployed into combat or with peacekeeping missions; no conscription; Luxembourg citizen or EU citizen with 3 ... |
| voluntary | Macedonia | 18 years of age for voluntary military service (2007) |
| voluntary | Malawi | 18 years of age for voluntary military service; standard obligation is 2 years of active duty and 5 years of reserve service (2007) |
| voluntary | Malaysia | 18 years of age for voluntary military service (2005) |
| voluntary | Maldives | 18 years of age for voluntary military service; no conscription (2008) |
| voluntary | Mali | 18 years of age for compulsory and voluntary military service; conscript service obligation - 2 years (2008) |
| voluntary | Malta | 17 years 6 months of age for voluntary military service; no conscription (2008) |
| voluntary | Mauritania | 18 years of age (est.); conscript service obligation - 2 years; majority of servicemen believed to be volunteers; service in Air Force and Navy is voluntary (2006) |
| voluntary | Mexico | ... for compulsory military service, conscript service obligation - 12 months; 16 years of age with consent for voluntary enlistment; conscripts serve only in the Army; Navy and Air Force service is all voluntary ... |
| voluntary | Morocco | 18 years of age for compulsory and voluntary military service; conscript service obligation - 18 months (2004) |
| voluntary | Namibia | 18-25 years of age for voluntary military service; no conscription (2008) |
| voluntary | Nepal | 18 years of age for voluntary military service; 15 years of age for military training; no conscription (2008) |
| voluntary | New Zealand | 17 years of age for voluntary military service; soldiers cannot be deployed until the age of 18; no conscription (2008) |
| voluntary | Nicaragua | 17 years of age for voluntary military service; tour of duty 18-36 months (2008) |
| voluntary | Nigeria | 18 years of age for voluntary military service (2007) |
| voluntary | Oman | 18-30 years of age for voluntary military service; no conscription (2008) |
| voluntary | 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 ... |
| voluntary | Papua New Guinea | 16 years of age for voluntary military service; no conscription (2008) |
| voluntary | Paraguay | 18 years of age for compulsory and voluntary military service; conscript service obligation - 12 months for Army, 24 months for Navy (2006) |
| voluntary | Peru | 18-30 years of age for voluntary male and female military service; no conscription (2008) |