UNSC Army

The UNSC Army is a branch of the UNSC Defense Force primarily responsible for land-based military operations.

Background
Little is known about the UNSC Army, which is probably due to the fact that the Army is a land-based fighting force, and thus little of the Army is attached to the UNSC Navy, with the possible exception of transport to other planets. It is also known that the UNSC Army uses different equipment from the UNSC Marine Corps, examples of such being the M6J Carbine, the MA37 Individual Combat Weapon System, and the M392 Designated Marksman Rifle, in contrast to the MA5B/MA5C assault rifles and BR55 Battle Rifle in use with the Marines. Soldiers of the UNSC Army wear the UNSC Army Battle Dress Uniform.

Role
It is known that the UNSC Army frequently patrols colony planets, but little is known about any operations they have participated in. Known operations include the Fall of Reach, where Army units assisted SPARTAN Noble Team in defending the planet, the Battle of Earth, where an Army unit tried to aid Marine forces in New Mombasa and was destroyed in the attempt, and the Battle of Mare Erythraeum on Mars, where Colonel James Ackerson led an unknown number of Army forces against the Jiralhanae commander Lepidus, and failed. Unlike the Marines, who take offensive action against the enemy, the UNSC Army is largely used in defensive operations, such as garrisoning UNSC-held territory.

The UNSC Army supposedly also takes a large role in training colonial militia. While Marines have been known to train colonial militia, such as that of Harvest, it is far more likely that the Army, as the defensive arm of the UNSC, would normally take charge of maintaining militia forces.

Trivia

 * The only known members of the UNSC Army are Colonel James Ackerson, an intelligence officer in the Office of Naval Intelligence who was once an infantryman, and Colonel Urban Holland, a who evaluated the members of Noble Team.
 * The UNSC Army makes its in-game debut in Halo: Reach, in which UNSC Army troopers, Marines, and ODSTs will have their own service tags showing their name and rank; some of which are named after Bungie employees.

Internal

 * UNSC Air Force
 * UNSC Defense Force