Iron Spears

The Iron Spears are a Codex-Deviant Successor Chapter of the Imperial Fists originating from the feudal world Ailinne in the Hibernum Subsector. The Iron Spears are tasked with dealing with threats in and around their home sector. These mostly include Ork attacks, Chaos incursions, and Dark Eldar raids.

Organisation
The Iron Spears Chapter is organized into 15 Companies known as Clan Companies. The 1st Clan Company serves as the Veteran Company, the 2nd-10th Companies serve as full Battle Companies, and the 11th-14th Companies serve as Reserve Companies. Following the creation of Primaris Marines, the Iron Spears formed the 15th Clan Company which is composed entirely of Primaris Marines. The Veteran Squad has 15 Squads; 5 Veteran, 10 Terminator. Battle and Reserve Companies have 10 Squads; 5 Tactical, 2 Devastator, 2 Assault, and 1 Scout. The Primaris Company has 5 Marines per Squad, thus they have 20 Squads; 10 Tactical, 4 Devastator, 4 Assault, and 2 Scout.

Founding
Created during the XXII Founding as a standing force in the Celtica Sector. When first founded, the Chapter had 10 Battle Companies and no Reserve Companies, this would change during the event known to the Iron Spears as the "Time of Torment"

Attack on Craftworld Feinnwe
Early on in the Iron Spears history the Chapter encountered the small Eldar Craftworld Feinnwe. Feinnwe was originally encountered by the Imperium during the 35th Millennium and had now reappeared in the Hibernum Subsector. Captain Chulainn led the 3rd Clan Company in a devastating attack on the Eldar Craftworld Feinnwé, causing crippling damage and slaying ⅔ of the Craftworld population. The Craftworld never recovered. Chulainn is now the oldest surviving dreadnought in the Iron Spears Chapter, having served Rinnal Boru, first Chapter Master of the Iron Spears.

Pacification of Mavros
In 236.M39, the Angels Vigilant Chapter began to show signs of suspicious activity, the Iron Spears was sent to subjugate the Chapter. When they arrived on the Angels Vigilant homeworld of Mavros, they discovered that the Chapter, as well as the planet's civilian had fallen to chaos. Although the Iron Spears declared Exterminatus upon the planet, some of the Angels Vigilant escaped to the Eye of Terror and were labeled as Excommunicate Traitoris.

Time of Torment
In the year 677.M39, a large Ork WAAAGH! appeared dangerously close to the Iron Spears home system. Most of the Iron Spears Chapter was mobilized to combat the threat, leaving a single company to defend Dunbairrche, the Iron Spears fortress monastery. It was then that the Angels Vigilant chapter, now known as the Voidstalkers Warband, returned after 441 years in hiding. The Voidstalkers along with a large contingent of Iron Warriors and Word Bearers attacked Ailinne, completely destroying the Iron Spears' 5th Clan Company and defiled Dunbairrche. The remainder of the Iron Spears chapter, already weakened from fighting the Ork horde were unable to dislodge the chaos marines on their own. Only 135 Iron Spears Marines remained when several companies of Blood Angels arrived and finally managed to dislodge the traitors. When the Iron Spears rebuilt themselves they created 4 new Clan Companies. These new Companies were charged with defending the Fortress-Monastery, the Reserve Companies rarely leave Ailinne and never go beyond the Hibernum Subsector.