Teumman, who was unrelated to the previous monarch and had to stabilize his rule by killing his political rivals. Three of Urtak's sons, chief rival claimants to the Elamite throne, escaped to Assyria and were harbored by Ashurbanipal, despite Teumman demanding them to be returned to Elam. Following the 665 victory over the Elamites, Ashurbanipal had to deal with a series of revolts within his own borders. Bel-iqisha, chieftain of the Gambulians (an Aramean tribe) in Babylonia, rebelled after he had been implicated as supporting the Elamite invasion and was forced to relinquish some of his authority. Little is known of this revolt, but there is a letter preserved in which Ashurbanipal orders the governor of Uruk, Nabu-usabsi, to attack Bel-iqisha. Nabu-usabsi apparently claimed that Bel-iqisha was solely to blame for the Elamite invasion. Bel-iqisha's revolt does not appear to have caused much damage and he was killed shortly after revolting by a boar. Shortly thereafter in 663, Bel-iqisha's son Dunanu also surrendered to Ashurbanipal. After a long period of peace, Teumman attacked Babylonia in 653. Because Ashurbanipal had not entrusted Shamash-shum-ukin with any substantial military forces, he was unable to defend Babylonia against the Elamite invasion and had to rely on Ashurbanipal for military support. Ashurbanipal's army first advanced south and secured the city of Der. Though Teumman marched to meet the Assyrians, he soon changed his mind and fell back to the Elamite capital of Susa. The final battle in the war with Teumman, the Battle of Ulai, took place near Susa and was a decisive Assyrian victory, partly due to defections in the Elamite army. Teumann was killed in the battle, as was one of his vassals, Shutruk-Nahhunte of Hidalu. In the aftermath of his victory, Ashurbanipal installed two of Urtak's sons as rulers, proclaiming Ummanigash as king at Madaktu and Susa and Tammaritu I as king at Hidalu. This intervention into the Elamite succession weakened both Elamite opposition towards Assyria and Elamite royal authority. In his inscriptions, Ashurbanipal described his victory at Ulai with the following account: Dunanu, who had joined the Elamites in the war, was captured alongside his family and executed. The Gambulians were attacked by Ashurbanipal's army and brutally punished, with their capital of Shapibel being flooded and many of its inhabitants slaughtered. In Dananu's stead, Ashurbanipal appointed a noble called Rimutu as the new Gambulian chieftain after he had agreed to pay