Because sometime between 2026-2028 this so-called commander-in-chief will declare martial law & military dictatorship.
Even though the Supreme Court has ruled that military trials of civilians are invalid if civilian courts are still operational even under martial law. But that doesn't necessarily mean the courts will even have the role they currently do. Given courts' current lax enforcement of rulings, it's doubtful the civilian judicial branch under martial law would still have any serious role in limiting military authority. It would still be the civilian judiciary vs trump, same as now.
As for the quality of JAG "judges"...
In addition to being licensed attorneys in any state or territory of the U.S., all military attorneys undergo specialized training to qualify as judge advocates, allowing them to act as trial or defense counsel at military courts-martial. Specialized training takes place at one of three military law centers:
The Judge Advocate General's Legal Center and School (U.S. Army) in Charlottesville, Virginia.
Naval Justice School in Newport, Rhode Island.
Air Force Judge Advocate General School at Maxwell Air Force Base, Montgomery, Alabama.
Naval Justice School is the primary training center for Navy, Marine, and Coast Guard JAs. Most judge advocates will take additional classes at more than one of these facilities during their time in the JAG Corps.
The Army's JAG School is the only military law center that has full American Bar Association accreditation. Its graduate course, leading to a Master of Laws degree, is open to judge advocates from all service branches.
Newly commissioned JAG officers may have little to no special legal education prior to commissioning; after completing Army Direct Commissioned Course, they receive their legal training at Judge Advocate Basic Officer Course at Fort Lee, Virginia.
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