Beginning a 3 - year siege during which the Assyrians will defeat Shamash - shum - ukin 's allies .
King Ashurbanipal defeats the Babylonian army of his half brother Shamash - shum - ukin and surrounds the fortified city of Babylon .
Beginning a 3 - year siege during which the Assyrians will defeat brother         's allies .
King Ashurbanipal defeats the Babylonian army of his half brother Shamash - shum - ukin and surrounds the fortified city of Babylon .