Answer:
analysis and proof of morality
The Roman empire was well organized with good roads & active trade, so the new religion could spread easily. Constantine was a sun worshipper who feigned Christianity so he could take control and throw out it's one and only goal
Https://www.army.mil/article/49291/pershings_decision_how_the_united_states_fought_its_first_modern_coalition_war
this might help you :)
if you could show all of it i could help