Editing Ultramar (section)

==History==
[[File:Ultramar 30k.png|400px|left]]
So, when the [[God-Emperor of Mankind|Emperor of Mankind]] finally found [[Roboute Guilliman]], he had been ruling as Lord of Macragge for some five years, and had established an alliance of mutual aid with eight other star systems. After the Emperor made Guilliman Commander of the Ultramarines, the worlds allied with Macragge reoriented themselves to providing food, munitions, and recruits to the Ultramarines Legion. While they only supported a Chapter now, the alliance remained, and the worlds formed the realm of Ultramar.

Originally, there were said to be even more than 500 worlds in the 30k era. However, the Shadow Crusade led to the destruction of many of these planets. Exact numbers are not specified. However, in "Laurel of Defiance" it states that about a hundred planets were destroyed by the combined might of the [[World Eaters]] and [[Word Bearers]] Legions. In the 41st Millenium, the Ultramarines now only controlled about 50-60 planets (given the latest maps from Gathering Storm). The rest were given away to successor chapters/independent administration. This is because, after the Heresy, Guilliman didn't want the Ultramarines to be tied up defending their own realm while battles raged elsewhere in the Imperium.

All of this changed after Guilliman returned in the closing years of M41. Having learned of the recent struggles that Ultramar had been facing as well as its immediate need for protection, he declared the treaties which gave many of the 500 worlds their independence "null and void" and ordered a return to the five hundred worlds system with an intent to expand Ultramar further.