Obama said on ABC?s This Week Sunday (September 7, 2008) ?I had to sign up for Selective Service when I graduated from high school.?
However, upon further research, revealed that Obama graduated in 1979 and ?the registration requirement was suspended in April 1975. It was resumed again in 1980 by President Carter in response to the Soviet invasion of Afghanistan.? (Info from the official government selective service website below) Thus, Obama?s statement that he ?had to sign up? is not true.
https://www.sss.gov/backgr.htm
https://youtube.com/watch?v=Km3yR3TsLcg