Ashur

Ashur began as the patron deity of his namesake city, Ashur, the capital of ancient Assyria. As Assyrian power grew, he evolved into the empire's national god, primarily revered as a divine warrior who championed Assyrian military campaigns.
Around 1300 BCE, Assyrian leaders aligned Ashur with Enlil, the supreme Sumerian deity, elevating his status to king of the gods. Under King Sargon's rule, Ashur's position was further enhanced by making him father to Anu, the Babylonian sky god and creator of the universe. During Assyria's rivalry with Babylon, Ashur absorbed characteristics of Marduk, Babylon's national god.
This constant absorption of other deities' attributes left Ashur without distinct traditions of his own. He ultimately served more as a symbol of Assyrian might than as a god with unique mythological character.