A Sacred Oath: Memoirs of a Secretary of Defense During Extraordinary Times – An Instant New York Times Bestseller: A Pentagon Insider's Tumultuous Years Under President Trump

by Mark T. Esper

71 percent of the 34 million seventeen-to twenty-four-year-olds in the United States could not meet the military’s entry requirements, most often due to obesity, drugs, physical and mental health problems, misconduct, or aptitude.