So last night while playing with a Terror Star for the first time I moved it into position (fleeted with a speed-enhancing ship, thank god) and started my war. I'd forgotten about the neutral ground UP treaty that I'd helped pass, but here's the thing - the Terror Star wasn't moved out to neutral ground.
Next turn I fired the TS and then lost it (my protective fleet had of course been teleported out), but it wiped out a huge chunk of military and production. Kind of a massive hole in the "These sneak attacks are awful, let's not have them" plan for the UP treaty...

Is that intended, or should a TS be ejected as well?