Answer:
The United states didn't trust anyone nut mostly colored or people that are out the country.
Explanation:
Since Pearl Harbor and 9/11 attacks this leaves the USA to have trust issues with these other countries. They attacked when we had our guards down. We had war and we could get bombed out of no where. They are some what allies but will always be enemies because China holds all bombs now because of Trump. Point is they attacked us so we just have to more careful and aware.
The answer is the one that starts with: to exchange ideas and services.
The Mexican society wasn't united, since they were constantly fighting with each other. Since soldiers were killed, they also lost military power. When the Spanish arrived, they had a strong military, but also diseases, which killed Mexican soldiers. That made the home society vulnerable.
Have a nice day! :)
