In December, the Department of Defense revealed that it had missed its collective recruitment goals for the armed forces by 41,000; among the separate military branches, only the Navy and Space Force met their individual goals. Given that, according to FiveThirtyEight, President Joe Biden and former President Donald Trump are running nearly dead even in their respective bids for a second term, either man is as likely as the other to be called upon to address that shortfall. One former Trump Cabinet secretary is pushing national mandatory military service. If elected, Trump would do well to rej…