18 years of age for compulsory and voluntary military service; conscript service obligation is 18 months; women are not conscripted but may volunteer to serve; re-enlistment obligation 5 years, with retirement after 15 years or age 40 or 20 years or age 45.
18-45 years of age for compulsory military service; conscript service obligation is 10-12 months; 17-45 years of age for voluntary service; an increasing percentage of the ranks are "long-service" volunteer professionals; women were allowed to serve in the armed forces beginning in early 1980s when the Brazilian Army became the first army in South America to accept women into career ranks; women serve in Navy and Air Force only in Women's Reserve Corps.
