Board Thread:Warhammer 40k Novels/@comment-194.237.158.57-20130818152037/@comment-8257990-20130818214909

There has always been rivalry between some of the Primarchs, each one of them had at least one rival brother, perhaps very small conflicts between them were common in the Great Crusade... The battles obviously escelated towards the Horous Heresy. The Emperor didn't know of many battles between Astartes, but even the Emperor was blind to many things.