Zalmunna was one of the two kings of Midian who led an invasion against Israel. Gideon captured him after defeating the Midianite forces.
Zalmunna escaped across the Jordan with Zebah and a remnant of the Midianites, but Gideon overtook them. Because the two kings had taken part in killing Gideon’s brothers, Gideon put them to death.
Zalmunna and Zebah fled toward Karkor with the surviving Midianite force. They were captured and brought back across the Jordan to Gideon’s home at Ophrah.