The Truman and Eisenhower Doctrines showed that the United States was most concerned with helping the Soviet Union fight off communism.
* sending US military aid to all countries in need,
✓halting the spread of communism throughout the world.
letting communism spread in Europe, but nowhere else.

In 1816, john c. calhoun proposed that: a. that the federal government aid in the construction of roads and canals to improve transportation to and from the west b.the united states should end slavery. c.the united states should increasing the size of the navy and invade central america. d. the united states should annex hawaii