Invaders

Invaders
Invaders Shoulder Plate.png
Battle Cry Unknown
Founding Unknown
Successors of Imperial Fists
Successor Chapters none
Chapter Master The current one's dead
Primarch Rogal Dorn
Homeworld Fleet-based (formerly Ogrys)
Strength Currently 12 Marines, rebuilding
Specialty Fighting Eldar, Not giving a fuck about casualties
Allegiance Imperium
Colours Light Green with gold

The Invaders are a Space Marine background chapter that has picked up notice as Matt Ward likes to add them in his codices. They have the luck of Lamenters with the grit of Crimson Fists, often heading right into the next battle despite having little to no time to replace their losses.

Their biggest accomplishment was destroying Craftworld Idharae. How the hell they did that, nobody knows (it would seem they simply damaged it beyond repair, later Ward explained it was still recovering from Hive Fleet Naga and lost most of its defences, but since Ward said it, most likely they just are that awesome or performed a Death Star run or something). It also seems that they took an insanely high number of casualties that they still didn't recover from in 43 years (but then again, the Iron Hands STILL haven't recovered from Istvaan V, and it's been 10 fucking thousand years), when Alaitoc showed up with Idharea's survivors at their home world. Only three hundred made it out and they were forced to become fleet based. Which may or may not be a retcon, as other information also suggests it was a combined force from several craftworlds including Ulthwe. Of course, with no idea of their recruitment practices but full knowledge of their absolute badassery, it could be their standards are just so high that they have very few potential recruits at any time, drastically slowing their growth in exchange for having significantly superior Marines. They even were attacked by a xenos species called the "cell-kin". Exactly what its name implies, with a dash of the Flood. They won. This implies that you have to be the equivalent of the Master Chief to be recruited, which would explain why recruitment is so slow. And why a Craftworld, even damaged, got its teeth kicked in by these dudes. Then they decided to go fuck Eldar with chainswords. So, they did.

17 years later they lost two full Terminator Squads trying to teleport them down to the Necron World Engine. It's not clear whether they sent both squads at the same time or the second after seeing the first failing. After the Astral Knights blew the Engine to hell, the Invaders are presumably one of the chapters that guard the Astral Knights memorial museum on Safehold.

One year later, they try to liberate a planet that Ahriman took over, only to set off a trap that Ahriman made, which resulted in the planet being ripped apart by warp fire. By the time the Grey Knights showed up to fix the mess, only 12 of the 300 marines they sent were still alive. That anyone survived tells us everything we need to know about these manliest of Marines. Maybe they should have stuck to invading instead of liberating. They seem much better at it. By the end of the millennium they were battling Iyanden and Hive Fleet Leviathan.

Chapters of the Adeptus Astartes
First Founding (M29): Blood Angels - Dark Angels - Imperial Fists - Iron Hands - Raven Guard
Salamanders - Space Wolves - Ultramarines - White Scars
Second Founding (021.M31): Angels of Absolution - Angels Encarmine - Angels Porphyr - Angels of Redemption
Angels Sanguine - Angels of Vengeance - Angels Vermillion - Aurora Chapter - Black Consuls
Black Guard - Black Templars - Blood Drinkers - Brazen Claws - Crimson Fists - Destroyers
Doom Eagles - Eagle Warriors - Excoriators - Fists Exemplar - Flesh Tearers
Genesis Chapter - Inceptors - Iron Snakes - Libators - Lions Sable - Marauders - Mortifactors
Nemesis - Novamarines - Obsidian Glaives - Patriarchs of Ulixis - Praetors of Orpheus
Rampagers - Raptors - Red Talons - Revilers - Silver Eagles - Silver Skulls - Soul Drinkers
Storm Lords - White Consuls - Wolf Brothers
Third to Twelfth Founding
(M32-M35):
Astral Claws - Charnel Guard - Dark Paladins - Executioners - Flesh Eaters - Halo Brethren
Howling Griffons - Iron Knights - Mantis Warriors - Marines Malevolent - Night Swords
Sable Swords (initial) - Scythes of the Emperor - Space Sharks - Sons of Guilliman
Thirteenth Founding (M35): Death Spectres - Exorcists
Fourteenth to Twentieth Founding: Angels of Fire - Celebrants
Twenty-First Founding
(991.M35):
Black Dragons - Blood Gorgons - Fire Hawks
Flame Falcons - Lamenters - Minotaurs - Sons of Antaeus
Twenty-Second to
Twenty-Sixth Founding (M35-M41):
Angels of Vigilance - Celestial Lions - Dark Hunters - Disciples of Caliban - Emperor's Spears
Fire Angels - Imperial Harbingers - Iron Lords - Knights of the Raven - Marines Errant
Mentors - Fire Claws/Relictors - Star Phantoms - Subjugators
Ultima Founding
(999.M41):
Angels of Defiance - Blades of Vengeance - Castellans of the Rift - Fulminators
Knights Cerulean - Knights of the Chalice - Knights of Thunder - Necropolis Hawks
Nemesors - Praetors of Ultramar - Rift Stalkers - Silver Drakes - Silver Templars
Sons of the Phoenix - Storm Reapers - Umbral Knights - Unnumbered Sons
Valiant Blades - Void Tridents - Wolfspear
Unknown Founding: Absolvers - Accipiters - Adulators - Angel Guard - Angels Eradicant - Astral Knights
Blood Ravens - Blood Swords - Brothers Penitent - Crimson Castellans - Crimson Consuls
Crimson Scythes - Dark Hands - Dark Sons - Death Eagles - Fire Lords - Guardians of the Covenant
Graven Spectres - Hammers of Dorn - Harbingers - Hawk Lords - Invaders - Iron Talons - Jade Dragons
Knights of Blood - Knights Unyielding - Marines Exemplar - Night Watch - Rainbow Warriors
Reclaimers - Red Hunters - Red Scorpions - Sable Swords (refounded) - Solar Hawks
Sons of Orar - Star Dragons - Storm Giants - Storm Wardens - Valedictors - Viper Legion - Vorpal Swords
Unsanctioned Founding: Consecrators - Sons of Medusa - Steel Confessors
Others: Adeptus Custodes - Astartes Praeses - Deathwatch - Grey Knights