Adam Clarke on 2 Kings 15:29

Came Tiglath-pileser - He is supposed to have been the successor of Sardanapalus: Dean Prideaux makes him the same with Arbaces, called by Aelian Thilgamus, and by Usher Ninus junior; who, together with Belesis, headed the conspiracy against Sardanapalus, and fixed his seat at Nineveh, the ancient residence of the Assyrian kings; as did Belesis, who is called, in Isa 39:1, Baladan, fix his at Babylon.

Took Ijon - These places belonged to Israel; and were taken by Ben-hadad, king of Syria, when he was in league with Asa, king of Judah. See 1Kgs 15:20. They were regained by Jeroboam the second; and now they are taken from Israel once more by Tiglath-pileser. From 1Chr 5:26, we learn that Pul and Tiglath-pileser, kings of Assyria, carried away into captivity the two tribes of Reuben, and Gad, and the half tribe of Manasseh; all that belonged to Israel, on the other side of Jordan. These were never restored to Israel.