Judges 20:1

Civil War Breaks Out

20:1 All the Israelites from Dan to Beer Sheba and from the land of Gilead left their homes and assembled together before the Lord at Mizpah.

Judges 20:31

20:31 The Benjaminites attacked the army, leaving the city unguarded. They began to strike down their enemy just as they had done before. On the main roads (one leads to Bethel, the other to Gibeah) and in the field, they struck down about thirty Israelites.