Judges 10:9

9 The Ammonites even crossed the Jordan to fight the tribes of Judah, Benjamin, and Ephraim. Israel was in great distress.

Judges 10:9 In-Context

7 So the Lord became angry with the Israelites, and let the Philistines and the Ammonites conquer them.
8 For eighteen years they oppressed and persecuted all the Israelites who lived in Amorite country east of the Jordan River in Gilead.
9 The Ammonites even crossed the Jordan to fight the tribes of Judah, Benjamin, and Ephraim. Israel was in great distress.
10 Then the Israelites cried out to the Lord and said, "We have sinned against you, for we left you, our God, and worshiped the Baals."
11 The Lord gave them this answer: "The Egyptians, the Amorites, the Ammonites, the Philistines,
Scripture taken from the Good News Translation - Second Edition, Copyright 1992 by American Bible Society. Used by Permission.