A new study says that Army recruits from Southern states are the most unfit.
A former Marine Corps drill instructor will serve 45 days' restriction and be administratively separated from the military.
The motions argued that moving ahead on transgender recruits would "place extraordinary burdens on our armed forces."
It was not immediately clear whether the Trump administration would appeal the ruling.
After years of trial and error, the Navy thinks it has a slogan that will resonate with the American public.
Waivers granted by the active-duty Army for marijuana use jumped to more than 500 this year -- from 191 in 2016.
A corporal stationed at Camp Pendleton pleaded guilty at a summary court-martial to belittling and berating a subordinate.
The Air Force has allowed more than 600 airmen to join its ranks despite having previously disqualifying medical conditions.
"The standards have not changed," Sgt. Major of the Army Daniel Dailey told a group of defense reporters.
The U.S. Army said it has made no changes to its policy for granting mental health waivers to recruits entering the service.