word | | Military service age and obligation |
| military | Syria | 18 years of age for compulsory military service; conscript service obligation - 30 months (18 months in the Syrian Arab Navy); women are not conscripted but may volunteer to serve (2004) |
| military | Taiwan | 19-35 years of age for male compulsory military service; service obligation 1 year; women may enlist; women in Air Force service are restricted to noncombat roles; reserve obligation to age 30 (Army ... |
| military | Tajikistan | 18 years of age for compulsory military service; 2-year conscript service obligation (2007) |
| military | Tanzania | 18 years of age for voluntary military service (2007) |
| military | Thailand | 21 years of age for compulsory military service; 18 years of age for voluntary military service; males are registered at 18 years of age; 2-year conscript service obligation (2006) |
| military | Timor-Leste | 18 years of age for voluntary military service; no conscription (2008) |
| military | Togo | 18 years of age for selective compulsory and voluntary military service; 2-year service obligation (2006) |
| military | Trinidad and Tobago | 18 years of age for voluntary military service (16 years of age with parental consent); no conscription (2008) |
| military | Tunisia | 20 years of age for compulsory military service; conscript service obligation - 12 months; 18 years of age for voluntary military service (2007) |
| military | Turkmenistan | 18-30 years of age for compulsory military service; 2-year conscript service obligation (2007) |
| military | Uganda | 18-26 years of age for compulsory and voluntary military duty; 18-30 years of age for professionals; 9-year service obligation; the government has stated that recruitment below 18 years of age could ... |
| military | Ukraine | 18-25 years of age for compulsory and voluntary military service; conscript service obligation - 18 months for Army and Air Force, 24 months for Navy (2004) |
| military | United Arab Emirates | 18 years of age (est.) for voluntary military service; 18 years of age for officers and women; no conscription (2008) |
| military | United Kingdom | 16-33 years of age (officers 17-28) for voluntary military service (with parental consent under 18); women serve in military services, but are excluded from ground combat positions and some naval postings; must ... |
| military | Uruguay | 18 years of age for voluntary and compulsory military service; enlistment is voluntary in peacetime, but the government has the authority to conscript in emergencies (2007) |
| military | Uzbekistan | 18 years of age for compulsory military service; 1-year conscript service obligation; moving toward a professional military, but conscription will continue; the military cannot accomodate everyone who wishes to enlist, and ... |
| military | Venezuela | 18-30 years of age for compulsory and voluntary military service; 30-month conscript service obligation - all citizens 18-50 years old are obligated to register for military service (2008) |
| military | Vietnam | 18 years of age (male) for compulsory military service; females may volunteer for active duty military service; conscript service obligation - 2 years (3 to 4 years in the navy); 18-45 years of ... |
| military | Yemen | voluntary military service program authorized in 2001; 2-year service obligation (2006) |
| military | Zambia | 18 years of age for voluntary military service (16 years of age with parental consent); no conscription (2008) |
| military | Zimbabwe | 18-24 years of age for compulsory military service; women are eligible to serve (2007) |
| Militia | Vietnam | ... service; conscript service obligation - 2 years (3 to 4 years in the navy); 18-45 years of age (male) or 18-40 years of age (female) for Militia Force or Self Defense Forces (2006 |
| minimum | Botswana | 18 is the apparent age of voluntary military service; the official qualifications for determining minimum age are unknown (2001) |
| minimum | Chad | ... of age for conscripts, with 3-year service obligation; 18 years of age for volunteers; no minimum age restriction for volunteers with consent from a guardian; women are subject to 1 year ... |