In order to fortify my units I have to be in friendly territory. I have had to go into territory for it to work, but sometimes I don't have to. Is there a set number of tiles away that allows for healing? Also, for unit upgrades it says I can only upgrade in friendly territory, but it only works in my own territory. So, I end up spending more time moving my units back and forth than actually fighting. Am I doing something wrong? Is this a glitch, or am I just not getting something?