Viet Nam wasn’t going well. We needed more “boots on the ground,” so they re-instituted the draft on December 1, 1969 with a lottery. Low number, you’re on your way to Viet Nam. High number, you’re okay. My number was 213 (out of 365). The draft was frozen at 195 in December of 1970. I dropped out of law school the next day.
In 1968, we had 536,100 troops in Viet Nam (compared to our 140,000 in Iraq). If we had the draft today, the war in Iraq would be over by the Fourth of July.