Wonderful worldbuilding here, and an entertaining look at how combat and fleet operations would work in space, including conversations with the enemy and other allies that take 2-3 minutes each way due to the distances, having to adjust and track against the relativistic effect of ships moving at different percentiles of light speed, and the joys of trying to aim at something when your best guess of where he is was projected from an image minutes old by the time you see it.
