Board Thread:Warhammer 40k General Discussion/@comment-65.29.225.205-20130427160705/@comment-15803608-20170611020739

Neithan02 wrote: are aware that a "sanction"  of the imperium is a military action, right. Magnus gt sanctioned by russ f.e..

maiden worlds are no real estate? A Sanction is a statement from the Imperium giving an individual Xeno permission to exist. This means there's a mechanism available for circumventing xenophobia ("these xeno are useful to us, so we permit them to exist"). Even if there weren't, if the sole surviving Loyalist Primarch and a Living Saint both vouch for Eldars then the rest of the Imperium would learn to live with a non-agression pact or a military alliance.

As for Maiden Worlds, no they aren't valuable enough to war over. There are only a few of them (even before it's fall, the Eldar Empire didn't use that many worlds), and they are too much of a hassle to fight over when there are so many other uninhabited worlds that the Imperium never got around to colonizing. By this point the Imperium has so many worlds that there aren't any resources it can't get from it's existing worlds - the only reason to take more worlds is to prevent enemies from having them.