The reason the joined the triple alliance was for more control and goods
Hope that helped thanks are welcomed
The correct answer to this open question is the following.
Since the beginning of the Islamic era in 622, the diffusion of Muslim advancement in science, technology, or mathematics spread basically through trade and conquest. As Muslims conquered territories, they established trade routes and spread the Muslim's teachings to the conquered regions, although they allowed people to have their own belief systems.
So since medial times, Muslims shared their knowledge and inventions in the fields of astronomy, mathematics, algebra, cartography, geography, cosmology, alchemy, astronomy, opthalmology, chemistry, botany, agronomy, medicine, pharmacology, and the development of trade in the harsh conditions of the desert.
The major developments in transportation were that overland transportation was improved by the creation of the National Road, the speed of water transportation was improved by the steamboat that made it easier to travel against the current, new canals provided efficient water transportation that linked farms to expanding cities, and railroads were built which cost less to build, could scale hills easier, moved faster than ships, and carried more weight.
This let people travel further distances for work. Leading to more towns staying stable as if people lived in one location they could take the rivers or railroad to get to the work camps and such. As prior to these developments people had to move where work was located this wasn’t required anymore. As well as this gave thousands of jobs and let jobs be more stable.
In reality the [peace] policy rested on the belief that Americans had the right to dispossess Native peoples of their lands, take away freedoms, and send them to reservations, where missionaries would teach them how to farm, read and write, wear Euro-American clothing, and embrace Christianity. If Indians refused to move to reservations, they would be forced off their homelands by soldiers.
Lyndon Baines Johnson, gave top priority to the passage of the bill. ... The bill also authorized the US Office of Education to distribute financial aid .... voting rights bill to Congress, and he urged Congress to vote the bill into law.