what happened after it?
AfterAfter the battle at Harran, Nabopolassar resumed his campaign against the remainder of the Assyrian army in the beginning of the year 608 or 607 BC.
Medo-Babylonian conquest of the Assyrian Empire
After the battle at Harran, Nabopolassar resumed his campaign against the remainder of the Assyrian army in the beginning of the year 608 or 607 BC. 
what is referred as medo-babylonian conquest of the assyrian empire? It was the last war fought by the Neo-Assyrian Empire when? Between 626 and 609 BC where was it fought? Assyria what was the main cause behind it? The new king of Assyria faced by the revolt of one of his brother's chief generals, Sin-shumu-lishir, who attempted to usurp the throne for himself. This threat caused the war.
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Medo-Babylonian conquest of the Assyrian Empire [SEP] Aftermath
The eventual fate of Ashur-uballit is unknown and his siege of Harran in 609 BC is the last time he, or the Assyrians in general, are mentioned in Babylonian records. After the battle at Harran, Nabopolassar resumed his campaign against the remainder of the Assyrian army in the beginning of the year 608 or 607 BC. It is thought that Ashur-uballit was still alive at this point, for in 608 BC the Egyptian Pharaoh Necho II, Psamtik I's successor, personally led a large Egyptian army into former Assyrian territory to rescue his ally and turn the tide of the war.