It was a journey the Cherokee people took because of An<span>drew Jackson's Indian removal policy. The Cherokee nation was forced to give up its lands east of the Mississippi River and to migrate to an area in present-day Oklahoma. It was called "Trail of Tears" because around 4000 of the 15000 Cherokees died along the way.</span><span />
<span>war: they needed guns and supplies for the soldiers
communication...: people could ask for a certain product
transportation...: get supplies easier for making stuff
mass...: they could make large quantities of stuff faster</span>
I believe the answer you are looking for is the "Lend-lease" act. This is where we would send military supplies such as tanks, guns, ships, ammunition over to allied countries such as France and Britain. The lend lease program did not allow sending men to foreign countries to assist in their war.
The main mechanism by which this might have or could have happened is through increases in the desire to increase monetary gain. Because the main driver of capitalism is an increase in sold goods when a country increases its land this inadvertenly makes the country more likely to earn more money through opening companies, etc.
Firstly, Hammurabi's code may help us to understand life in Babylonia, telling us more about Hammurabi during his time as king when he oversaw the expansion of his kingdom from a city-state to an empire. Secondly, other sources might include both ancient and recent historical articles and findings from ancient scientists and historians. Thirdly,excerpts from biblical references of ancient Babylonia like Bible chapters from books such as Genesis and the Biblical Chronicles, to name a few, also help us to understand life in Babylonia.