Ashoka
Hindus in 19th century say that there was Ashoka who created Akhand Bharat by conquering many nations. He too had to go through a bloodbath. After a few years, his idea of akhandta didn't work either. There was mahabharta too. Over 50 nations in southasia invading each other.
Indian emperor of the Maurya Empire (304 BCE – 232 BCE)