Lieutenant general Lieutenant general Lieutenant general, lieutenant-general and similar (abbrev Lt Gen, LTG and similar) is a three-star military rank (NATO code OF-8) used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second in command on the battlefield, who was normally subordinate to a captain general. In modern armies, lieutenant general normally ranks immediately below general and above major general; it is equivalent to the navy rank of vice admiral, and in air forces with a separate rank structure, it is equivalent to air marshal. A lieutenant general
Major general (United States) and took command of the Union forces, he used the three-star insignia formerly assigned to that position. The Confederate States Army maintained a similar rank of major general, usually associated with the command of a division, while lieutenant generals often commanded corps and full generals led armies as a general convention. There was no major general in the U.S. Marine Corps until Commandant Charles Heywood was specially promoted by Act of Congress in July 1902. From his retirement on October 3, 1903, brigadier general was again the highest rank in the Marine Corps until May 21, 1908, when the rank