The entire event took place in an alternate world, not our own, so please no hard feelings. If you're an Indian, regardless of your religion, you'll likely enjoy this story, or you can take it as a wish fulfilment.
Yes, this story is in year 550CE, there was no recent conquest was going there and europe was in dark ages, and Arabs were living in the kabila system and they are also in dark age and north and south america, no one even knows that exist till now.
He'll use every resources for his own empire doesn't matter even his neighbouring kingdom like iranian or Central Asian country infighting, he'll just use them for cashcow.
You have to think about your own nation first as we all know, chanakya was a grand stretgies and if you read his book, you'll know my future planning, thanx