Where was the focus of u. s expansion before the late 1800s?

Before the U.S. expansion they focused on economic interests , military interests, and belief in cultural superiority  10 people found this useful. Americans had always sought to expand the size of their nation, before the late 1800`s they extended their control toward the pacific coast.  Before the U.S. expansion they focused on economic interests , military interests, and belief in cultural superiority  10 people found this useful.

                                   HOPE THIS HELPS;)

c 3 branches because idk why they had 3 well when:

you think of it there are still contrys with 3

do but i don't go there

explanation:

btw this is in middle school stuff lol