Just put them on a 2000 calory deficit diet during basic training, and double its duration.
That'll get rid of 80 pounds of excess fat, plus they won't have the strength to masturbate.
Sure, half of them will become casualties before they see action, but they can still pilot drones, do the funny or make coffee, while you can feed the other half into the front line grinder.
This is how WW3 will happen, i figure. Warfare from the comfort of your home, ready to jump into o a new robot Body once downed. War being nothing more than a Battle of attrition and technical Ressources.
Why. The fuck. Would anyone, Millennial or younger join the US military these days? To fight for oil overseas, while the world is burning? To be the arm of our corrupt politicians? To defend all the houses we will never afford? To protect a populace that yearns for fascism?