Well, like I said, I'm going to go pick a fight. I'll take all four dragon riders and the Great Dragon ([shift] - clicking) and fly the to the left. In the swamps I come across some poor misguided trolls. I could emissary them but no, I'm going to kill them. I fly up to them and the computer asks me if I want to emissary them. I say no. All of a sudden all my troops turned red and they lost all their movement.* This is because they are now is the trolls Zone of Control (ZOC) and when you enter a ZOC you have to stop moving and attack. Fortunately physical combat doesn't happen until the end of the turn so I'll have time to do a magic attack before my Dragon Riders and courageous Ape Men go into mortal combat with the dreaded trolls.
* If this had been an enemy stack as opposed to a neutral stack, you would not have been given the chance to emissary and you would have gone straight into Zone of Control. BE CAREFUL MOVING AROUND ENEMIES! the Fantastic War has no Undo.