We're far enough out that, in retrospect, the Earth Queen isn't going to give too much of a shit about us. That said, I don't want to get embroiled in the inevetable Sand-vil war, among the tribes when they respond to the creation of our militia.
Since, you know, we're literally making a small army here. How do you think our neighbors are going to take it? Even if we just act as basically superheroes, that still means imposing our own rulset people we have no direct authority over. Given how even dad only has as much power as his constituents are willing to allow him, I imagine that there will be a lot of people bucking the efforts of our militia (even fit ehy agree with what we're doing, it's the principle of the matter), most likely leading to the creation of one or more counter armies, annnnd eventually this all dissolves into civil war.