Let's say army A attacks Ruh to Bur, supported by an army in Bel, while army B attack Bur to Ruh, unsupported. I know army A wins and moves to Bur, vacating Ruh. My question is, can a unit dislodged from Kie meanwhile retreat into Ruh after the move? I'm pretty sure the answer is "yes", but I want to be sure.
Thanks in advance!!