Now Zebah and Zalmunna were in Karkor, and their hosts with them, about fifteen thousand men, all that were left of all the hosts of the children of the east: for there fell an hundred and twenty thousand men that drew sword. Zebah and Zalmunna were in Karkor - If this were a place, it is nowhere else mentioned in Scripture. Some contend that קרקר karkor signifies rest; and thus the Vulgate understood it: Zebah and Zalmunna requiescebant, rested, with all their army. And this seems the most likely, for it is said, Judges 8:11, that Gideon smote the host, for the host was secure.
Related Commentaries of Judges 8:10
Judges 8:10
10 Now Zebah and Zalmunna were in Karkor, and their hosts with them, about fifteen thousand men, all that were left of all the hosts of the children of the east: for there fell an hundred and twenty thousand men that drew sword.