Editing Hephaestus-IV (section)

==Relationships with other Imperial Organizations==

===Ecclesiarchy===
The Mechanicum of Hephaestus are generally staunch believers that the God-Emperor and the Omnissiah are the same thing. Due to their shrines to the God-Emperor within their system and trade pacts with them, the Ecclesiarchy generally behaves favorably outwardly to the priesthood within the system. 
However, tension simmers beneath the surface at the notion that these priests, useful allies they may be, deign themselves to know better then the God-Emperor when it comes to the holy human form. 
In addition to the Cadian Gate, the Forge World also supplies melta and flamer weaponry to various Sororitas Militant covenants within their purview. 

===Space Marines===
Hephaestus-IV maintains a good relationship with several Space Marine chapters, among them being the Iron Hands of Medusa and the Fleet-bound chapter of the Dark Angels and has offered training to several of their techmarines, some have accepted.
There is enmity between themselves and the more pious chapters such as the Black Templars and the Red Scorpions for much the same reasons as the Ecclesiarchy who see them as prideful and arrogant. 
The priests of Hephaestus-IV have since established a mutual benefit alliance with the Conservators chapter of Space Marines, a chapter long shunned by the Adeptus Mechanicus. Doing so is not out of defiance of Mars but the need for warriors at the Eye.

===Inquisition===
Relations with the Inquisition remain good. Now and then Inquisitors will come to demand wargear from them or come on claims of maintaining purity. 

===Imperial Guard===
Hephaestus maintains great relations with the guard and dedicates nearly 74% of the Forge’s output to supplying the forces around the Cadian Gate. The Militant Archmagi Primus tend to clash with Cadian commanders though, oftentimes resulting in friction between the two, but is eventually smoothed over as the next supply of weapons ships in.

===Other Forge Worlds===
Hephaestus is a generally compliant Forge World and pays tribute to Mars in the form of weapon schematics and samples of technology, this tribute is sent out once every 100 years. The Forge World has relations with the worlds of Agrippa, Omnicron-9, and several other worlds. Of note is an alliance with Ryza. They share several patterns of ancient technology with them in exchange for access to their powerful cooling systems and mastery of plasma.