Major General

Major General was a military rank, derived from and subordinate to General, used by ground forces (armies) and some starfighter branches. It was directly above Colonel and below Lieutenant General.

Galactic Empire
Major Generals commanded a Corps, consisting of several battlegroups. In practice the Corps was one of the most important levels of organization in the Imperial Army. Cooperation with the Navy was best at this level of command, and the Army's standard transport ships were built to accommodate a Corps each.

New Republic
A Major General in the New Republic Army would serve as commander for an entire corps. They were brass officers, coordinating efforts in with lieutenant generals and generals, and occasionally acted as combat operation commanders. It was directly above Brigadier General and below Lieutenant General.

In the New Republic Starfighter Corps, these officers served as wing commanders.