word | | Military service age and obligation |
| age | South Sudan | ... the Government of South Sudan announced in August 2010 that anyone younger than 18 years of age would be mustered out of the army, but 900 children were estimated to still be ... |
| age | Spain | 18 years of age for voluntary military service by citizen or legal immigrant, 2-3 year obligation; women allowed to serve in all SAF branches, including combat units; Spanish Government can mobilize citizens ... |
| age | Sri Lanka | 18 years of age for voluntary military service; 5-year service obligation (2010) |
| age | Sudan | 18-33 years of age for male and female compulsory and voluntary military service; 1-2 year service obligation; a requirement that completion of national sevice was mandatory before entering public or private sector ... |
| age | Suriname | 18 years of age (est.); recruitment is voluntary, with personnel drawn almost exclusively from the Creole community (2007) |
| age | Swaziland | 18-30 years of age for male and female voluntary military service; no conscription; compulsory HIV testing required, only HIV-negative applicants accepted (2011) |
| age | Sweden | 18-47 years of age for male and female voluntary military service; service obligation: 7.5 months (Army), 7-15 months (Navy), 8-12 months (Air Force); the Swedish Parliament has abolished compulsory military service, with ... |
| age | Switzerland | 19-26 years of age for male compulsory military service; 18 years of age for voluntary male and female military service; every Swiss male has to serve at least 260 days in the ... |
| age | Syria | 18 years of age for compulsory military service; conscript service obligation - 21 months (18 months in the Syrian Arab Navy); women are not conscripted but may volunteer to serve (2010) |
| age | Taiwan | 19-35 years of age for male compulsory military service; service obligation - 2 years; women may enlist; women in Air Force service are restricted to noncombat roles; reserve obligation to age 30 (Army ... |
| age | Tajikistan | 18-27 years of age for compulsory military service; 2-year conscript service obligation (2011) |
| age | Tanzania | 18 years of age for voluntary military service (2007) |