The Judge Advocate General of the United States Army (TJAG) is the senior officer of the Judge Advocate General's Corps of the United States Army.

By statute, TJAG serves a four-year term as the legal adviser of the Secretary of the Army and of all officers and agencies of the Department of the Army; directs the members of the Judge Advocate General's Corps in the performance of their duties; and receives, revises, and has recorded the proceedings of courts of inquiry and military commissions 10 U.S.C. § 7037.

In a letter to the Continental Congress he wrote, "I would humbly propose that some provision should be made for a judge advocate, and provost-marshal.

The necessity of the first appointment was so great that I was obliged to nominate a Mr. Tudor, who was well recommended to me, and now executes the office under an expectation of receiving captain's pay—an allowance (in my opinion) scarcely adequate to the service, in new raised troops, where there are court-martials [sic] every day.

"[1] Congress agreed with Washington and Tudor was formally commissioned as a lieutenant colonel.