New Zealand
17 years of age for voluntary military service; soldiers
cannot be deployed until the age of 18; no conscription (2008)

Nicaragua
17 years of age for voluntary military service; tour of
duty 18-36 months (2008)

Niger
17-21 years of age for selective compulsory or voluntary
military service; enlistees must be Nigerien citizens and unmarried;
2-year service term; women may serve in health care (2009)

Nigeria
18 years of age for voluntary military service (2007)

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, in practice
shortened to 8 to 9 months; although all males between ages of 18
and 44 are liable for service, in practice they are seldom called to
duty after age 30; reserve obligation to age 35-60; 16 years of age
for volunteers to the Home Guard, who serve 6-month duty tours (2009)

Oman
18-30 years of age for voluntary military service; no
conscription (2008)

Pakistan
17-23 years of age for voluntary military service; soldiers
cannot be deployed for combat until age 18; the Pakistani Air Force
and Pakistani Navy have inducted their first female pilots and
sailors (2009)

Papua New Guinea
16 years of age for voluntary military service
(with parental consent); no conscription (2008)

Paraguay
18 years of age for compulsory and voluntary military
service; conscript service obligation - 12 months for Army, 24
months for Navy (2007)

Peru
18-30 years of age for voluntary male and female military
service; no conscription (2008)