Aramea/Eber-Nari was then ruled by the succeeding Neo-Babylonian Empire (612–539 BCE), initially headed by a short-lived Chaldean dynasty. The Aramean regions became a battleground between the Babylonians and the Egyptian 26th Dynasty, which had been installed by the Assyrians as vassals after they had conquered Egypt, ejected the previous Nubian dynasty, and destroyed the Kushite Empire.
The Battle of Nineveh is conventionally dated between 613 and 611 BC, with 612 BC being the most supported date. Rebelling against the Assyrians, an allied army which combined the forces of Medes and the Babylonians, besieged Nineveh and sacked 750 hectares of what was, at that time, one of the greatest cities in the world.
In April or May 612 BC, at the start of Nabopolassar's fourteenth year as king of Babylon, the combined Medo-Babylonian army marched on Nineveh. From June to August of that year, they besieged the Assyrian capital and in August the walls were breached, leading to another lengthy and brutal sack during which Sinsharishkun is assumed to have died.