I believe the answer is: <span>causal reasoning
</span><span>causal reasoning refers to the process of identifying a causal and effect relationship that might explain a certain occurence
</span>The process started from initiating assumptions and than conducted several studies to either prove or disprove whether the initial assumptions are correct.
Answer:
By Conquering other kingdoms.
Explanation:
After winning the war, the kingdoms will take ownerships over the land and resources that exist in the losing kingdom. (even enslaving the citizens of the losing kingdoms was a common practice in this time period) This will massively increase the wealth of the winners and make the rulers become more powerful.
This practice stopped in 1600s , after European empires developed navigation technology and realized that colonizing weaker countries on another continent was more beneficial for them.
D i think? Im not 100% but thats what makes sense