Sisera (commander of Jabin's army) was the base area where the army was gathered when he invaded the Israelites.
Judges 4:2And the Lord sold them into the hand of Jabin king of Canaan, who reigned in Hazor. The commander of his army was Sisera, who lived in Harosheth Haggoyim.
Judges 4:13Sisera summoned from Harosheth Haggoyim all his chariots—nine hundred iron chariots—and all the men with him to the Kishon River.
Judges 4:16Barak pursued the chariots and army to Harosheth Haggoyim. All Sisera’s troops fell by the sword; not a man was left.