7th Marine Expeditionary Force

The 7th Marine Division, also known as the 'Seventh Column' is one of the most famous Marine Divisions in the UNSC's history. The unit fought bravely in the tail end of the Human-Covenant War and during the Necros War.

Origins
The 7th Marine Armoured Division was originally formed during the interplanetary war and was quickly disassembled at the end of the war. The unit wasn't reactivated till the final days of the Human Covenant War. The unit was quickly thrown together from several battle weary units with large numbers of new replacements and newer units just activated, having barely finished training. The Division was quickly cobbled together and was finally thrown into action just after the battle of New Mombasa. When the Covenant invaded proper, the 7th Division was thrown into combat all around Kenya, fighting back Covenant incursions. Though heavy casualties were incurred, they pushed back the enemy and fought in every theater from the ruins of Mombasa to Arusha, Voi, Tsavo and every where inbetween. The unit, despite being either too fresh or too battle ravaged, proved itself in battle and survived the war.

Remnant War
During the brief Remnant War, the seventh division was reactivated and sent against the Remnant, fighting then in many campaigns and on more than one occassion supported the SPARTANS.

Necros War
Seventh Diviosn was deployed to Linna and faced the full horror of the Necros War machine, taking heavy casualties. They were deployed to multiple battles and soon became one of the UNSC's premier fighting units against the Necros.