Thanks to what the Assyrians were able to create a strong state?

They learned how to work iron, make a formidable weapon from iron, created a strong army, widely began to use cavalry, brutally suppressed uprisings, in the occupied territories they were helped to rule by governors who obeyed only the Assyrian kings.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.