Enacted in 1950, the Uniform Code of Military Justice serves as the principal legal instrument for the United States Armed Forces.
Military Judges' Benchbooks provide trial procedure and instructions as well as jury instructions. Military justice and procedural treatises provide practical guidance aimed at JAG officers.
Issued as an Executive Order under Article 36 of the UCMJ, the Manual for Courts-Martial is the official guide to conducting courts-martial.
Superseded versions of the MCM are posted on the Library of Congress Federal Research Division's site. The Jacob Burns Law Library also has some editions in print and PDF.