Respuesta :
The Selective Service System changed over from a labor intensive, arbitrary, and many contend unfair, hand selection system, to a lottery based on birth dates of the victims.
Answer: An amendment to the Military Selective Service Act of 1967 established conscription based on random selection (lottery).
Explanation:
On November 26, 1969, President Richard Nixon signed the Selective Service Act of 1948 that instituted conscription based on a lottery system. The Selective Service System of the United States carried two lotteries that same year to decide the order of call to military service in the Vietnam War. It was the first time a lottery system had been used to select troops for military service since 1942.