A simple question that, I'm sure, will have a complex answer.
Could a Rogue Trader declare war on another dynasty or planetary noble family?
If yes, could they then use their ships to level their new enemies ground based assets? (of course, being careful not to damage anyone elses)
Other than the obvious repercussions, so long as it was a limited war and, one would hope, over quite shortly, would there be any 'imperial entanglements'?
So you know gents, I am quite learned in 40k, I'm simply asking for some sort of clarification