<P> In 1964 compulsory National Service for 20 - year - old males was introduced under the National Service Act ( 1964 ) . The selection of conscripts was made by a sortition or lottery draw based on date of birth , and conscripts were obligated to give two years ' continuous full - time service , followed by a further three years on the active reserve list . The full - time service requirement was reduced to eighteen months in October 1971 . </P>
<P> In 1964 compulsory National Service for 20 - year - old males was introduced under the National Service Act ( 1964 ) . The selection of conscripts was made by a sortition or lottery draw based on date of birth , and conscripts were obligated to give two years ' continuous full - time service , followed by a further three years on the active reserve list . The full - time service requirement was reduced to eighteen months in October 1971 . </P>
when was conscription introduced in australia during the vietnam war
when was conscription introduced in australia during the vietnam war
1964
1964