Ashur-bel-kala campaigned successfully against Urartu and Phrygia

Ashur-bel-kala (1073–1056 BC) kept the vast empire together, campaigning successfully against Urartu and Phrygia to the north and the Arameans to the west. He maintained friendly relations with Marduk-shapik-zeri of Babylon, however upon the death of that king, he invaded Babylonia and deposed the new ruler Kadašman-Buriaš, appointing Adad-apla-iddina as his vassal in Babylon. He built some of the earliest examples of both Zoological Gardens and Botanical Gardens in Ashur, collecting all manner of animals and plants from his empire, and receiving a collection of exotic animals as tributes from Egypt.