When countries get embroiled in a war, they usually cast a wide net for people to join the military and work to keep the ones who are already in. The United States appears to be sending troops from several Marine Expeditionary Units , the 82nd Airborne , 101st Airborne, 75th Rangers, 10th Mountain Division , and assorted special operations into the fight in Iran. At the same time, the administration is lowering standards to let more people into the military—except for those they feel are unfit