Chushan-rishathaim

Cush of double wickedness, or governor of two presidencies, the
king of Mesopotamia who oppressed Israel in the generation
immediately following Joshua (Judg. 3:8). We learn from the
Tell-el-Amarna tablets that Israel had been invaded by the
forces of Aram-naharaim (A.V., "Mesopotamia") more than once,
long before the Exodus, and that at the time they were written
the king of Aram-naharaim was still intriguing in Canaan. It is
mentioned among the countries which took part in the attack upon
Egypt in the reign of Rameses III. (of the Twentieth Dynasty),
but as its king is not one of the princes stated to have been
conquered by the Pharaoh, it would seem that he did not actually
enter Egypt. As the reign of Rameses III. corresponds with the
Israelitish occupation of Canaan, it is probable that the
Egyptian monuments refer to the oppression of the Israelites by
Chushan-rishathaim. Canaan was still regarded as a province of
Egypt, so that, in attacking it Chushan-rishathaim would have
been considered to be attacking Egypt.