Diem started reforms that stripped power from the wealthy land owners. Diem began politics that were oppressive to Buddist. Diem ran as canidant in the Veilmater elections. Diem also started trading with nations like China.
All of these statements about the enlightment and acient scholars are correct except the last one
1. The empires are gone 2. The wars over religion and territory have stopped 3. Population has skyrocketed