While this might give you some sense of victory it still doesn't change the truth or make me a liar. I graduated boot camp at the age of 17. I spent all by the last 11 days in boot camp at the age of 16. But in the Marines and other branches your career start day on your DD214 starts the day you went to bootcamp. So for a little over two and a half months I was in the military legally at the age of 16.