Answer:
The Central Intelligence Agency (CIA [/siaɪˈeɪ/]) is a civilian foreign intelligence service of the federal government of the United States, tasked with gathering, processing, and analyzing national security information from around the world, primarily through the use of human intelligence (HUMINT).
Explanation:
A primary source is about somebody that witnessed an event or something
A secondary source comes from someone that heard that didn’t witness the event
For example the news is a secondary source and the person that was at the event is primary
Increase in military power and bases around the world.
More land and supplies
Help civilize the rest of the world
The U.S Emancipation proclamation of 1863 only freed Slaves in States that were rebellion against the United States.