An empire with similar characteristics to raja #2 would be Kalinga. I could persuade raja #2 to join raja Eisert's empire by telling him that raja Eisert could open up more trade routes

Raja #2

Raja #2 is similar to Kalinga because Kalinga controlled most trade routes in ancient India.

Journal page 78

I would tell him that raja emirs could open up more trade routes because if they combine raja #2's trade routes with raja Eisert's trade routes they will have a lot of trade routes.