Found a great city location. It's behind my empire, meaning that I've cut off a corner of the map, building my empire there, and this location is behind my conglomerate of cities, and I'm not trading/selling my open borders to anyone. However, there's an (Arabian) warrior, who apparently was initially sent to scout, standing on that specific tile, and turn after turn, he doesn't move. I finally realized, "aha, he's not moving because he can't make it back to his empire because of the lack of OB- so I gift them OB, wait for a turn, and then another, and he still doesn't move. Aside from DoWing and destroying the unit, is there any way to make this unit move off the tile. It may factor in that the unit is of a nearly eliminated civilization- Arabia had the misfortune of starting near Sumeria who took all but one of his cities, including his capital. Come to think of it, that may be the problem: Arabia's one city "empire" is completely surrounded by tiles that are now owned by Sumeria. So again, is there any way to make the unit move?