Charles Ellicott Commentary Joshua 24:9

"Then Balak the son of Zippor, king of Moab, arose and fought against Israel: and he sent and called Balaam the son of Beor to curse you;" — Joshua 24:9 (ASV)

Warred against Israel. —The sending for Balaam was a distinct act of hostility. Whether Balak himself ever led an army against Israel we are not informed. In the war with the Midianites, Balaam was slain; and there may have been Moabites allied and acting with the Midianites in the war in Numbers 31:0.