His royal titles included “ merciless hero in battle , crusher of the enemies of Aššur , strong shackle binding the insubmissive , one who puts the insubordinate to flight , …murderer of the extensive army of the Ahlamȗ ( and ) scatterer of their forces , the one who … defeats the lands of [ … ] , the Lullubû , all the Qutu and their entire mountainous region and subdues them at his feet… ” He styled himself `` mutēr gimilli māt Aššur '' , “ avenger of Assyria , ” and seems to have directed his earlier campaigns to the east , as a broken chronicle records his campaign staged from Erbil into the disputed Zagros mountains where his shock troops ( `` ḫurādu `` ) encountered the Babylonian king Ninurta-nādin-šumi , here called Ninurta-nādin- '' šumāti '' , whose forces characteristically “ fled , ” a recurring motif in Assyrian accounts of their relationship with their southern neighbour .