It was a United States naval officer/ historian, also known to be a propagandist to expansion, named Alfred Thayer Mahan who wanted to expand the extent of capacity of the United States and its navy. He wrote “The Influence of Sea Power upon History”. It stated his idea that the countries with the biggest navies and greater sea power over others who could govern the world. With his principles, and knowing that US had at that time the elements of the capability to expand its greatness, he created strategies based on commerce trading and coastal defense to support the Manifest Destiny. Manifest Destiny states that it is the United States who was the ones who were destined to expand across North America.
It is most likely because he believed that they could cause unnecessary conflict... that is just my educated guess
The best and most correct answer among the choices provided by the question is the second choice. <span>The kingdoms of Ghana, Mali, and Songhai were all able to achieve golden ages in part because of their control of the trans-Saharan trade routes. </span>I hope my answer has come to your help. God bless and have a nice day ahead!
Merchants would be needed more because the warring states were constantly at war.(armies need supplies, merchants have supplies)
