Cancridrae Xenocide

"Blessed are those who died in service of the God-Emperor. May their sacrifices never be forgotten. May their names live on forever."

- Inscription of the New Korinthos Memorial

Officially known as the Cancridrae Reclamation Crusade, this great campaign was launched in an effort to stem the advances of the hostile xenos known as the Amphra, and reclaim the territories lost to their predations. Ultimately, over the course of four Terran years only slight advances were made, as extreme casualties on both sides of the conflict resulted in a hard-fought stalemate that lasts to this day.

Order of Battle
In comparison to similar military endeavors, the Cancridrae Xenocide was a relatively small operation, and thus its overall command hierarchy and structure were both basic and somewhat improvised in many regards. Overall command still laid in the hands of Warmaster, but his council of Lord Marshals each oversaw individual Battlegroups, each one consisting of various mixed Imperial Guard/Imperial Navy forces, as well as attached Adeptus Mechanicus support staff, Logistics staff, etc.

Astra Millitarum
Regimental command still laid in the hands of said Regiment's commanding Colonel (and/or similar corresponding rank), though all were obligated to report to their Battlegroup's commanding Lord Marshal, as was protocol. The individual Battlegroups consisted of the following:

Adeptus Astartes
Notoriously independent, those Space Marine Chapter's who did answer Warmaster van Dragen's call to arms respected his rank if nothing else, but kept their own council. Having come equipped with their own designated fleet and support elements, they were later organized into the Imperial battle plan as "Strike Forces", one per each individual Chapter. Throughout the course of the Xenocide they mostly participated in surgical strike operations or provided support to the Imperial Guard Battlegroups as the situation demanded. The individual Strike Forces consisted of:

Other Forces

 * Imperial Navy - Battlefleet Medici was deployed in full force during the entire span of the Xenocide, the Medicians eager to avenge the losses the Amphra inflicted upon them in years long past. Their warships proved instrumental in both countering the Amphra's own fleet elements and in transporting Imperial Guardsmen from battle to battle.
 * Adeptus Mechanicus - The followers of the Machine God mainly played a largely supportive role during the Xenocide. Their priesthood was tasked with the rebuilding and redevelopment of Imperial worlds liberated from the Amphra or conquered by the Imperium. As such, entire armies worth of Mechanicus Artisans, Engiseers, and servitor labor-forces trailed in the wake of the main Battlegroups.
 * Adeptus Ministorum - Many members of the Missionarus Galaxia also trailed in the wake of the Xenocide's military forces, to ensure the proper veneration and proliferation of the Imperial Creed within re-conquered worlds. Other than that however, the Ecclesiarchy had a fairly limited influence on the affairs of the campaign.
 * Inquisition - In light of the discovery of the Amphra Matriarchy, a conclave of Inquisitors was brought together under the aegis of one Marik Apollyon, Lord Inquisitor of the Ordo Xenos. Known as the Cancridrean High Conclave, the main objective of this "intelligence force" was the analysis of the Amphra as a species. Through many undisclosed means the Inquisitors gained precious insight into the physiology, behaviors, and culture of the Amphra, information that would prove invaluable to the campaign's high command.