By 1700 BC the Assyrians had been conquered by the Amorites, and later they were controlled by the Hurrians for a long time.
Assur-uballit and the Assyrians soon had to fight both the Hurrians and the Kassites in order to stay independent, but they won their wars and were able to establish themselves.
The Assyrian army, which was feared everywhere, started out pretty much every spring going south along the Tigris river, and then cross to the Euphrates and follow that upstream until it got home again to Assur, around the end of the summer.
Assyrian missionary enterprise, by the end of the twelfth century the Assyrian Church was larger than the Greek Orthodox and Roman Catholic churches combined, and it spanned the Asian continent, from Syria to Mongolia, Korea, China, Japan and the Philippines.
A large segment of the Assyrian population escaped the ravages of Timurlane by fleeing into the Hakkary mountains (present day eastern Turkey); the remaining Assyrians continued to live in their homelands (presently North Iraq and Syria), and Urmi.
Assyrians have suffered massive genocide, have lost control of their ancestral lands, and are in a struggle for survival.