Kush battled another rich, powerful kingdom for land and resources. Kush’s biggest rival was what?

it was actually egypt and since Kush broke away from Egypt and later conquered and ruled Egypt. After the rule of Ramses II, Egypt's government collapsed. Rival leaders in different cities were so busy fighting one another that they forgot about maintaining Egypt's control of Kush.

Explanation: i hoped it helped you (p.s its egypt)

answer; generalizability;