What was the major message of the monroe doctrine?
a.
americans could no longer move westward.
b.
spain and great britain had to completely withdraw from north america.
c.
the american continents were closed to european colonization.
d.
all trade between europe and asia had to pass through the americas.

The American continents were closed to European colonization. thats the answer

the most famous of all the units fighting in cuba, the "rough riders" was the name given to the first u.s. volunteer cavalry under the leadership of theodore roosevelt. roosevelt resigned his position as assistant secretary of the navy in may 1898 to join the volunteer cavalry. the original plan for this unit called for filling it with men from the indian territory, new mexico, arizona, and oklahoma. however, once roosevelt joined the group, it quickly became the place for a mix of troops ranging from ivy league athletes to glee-club singers to texas rangers and indians.

this act gave the federal government the power to relocate any native in the east to territory west of the mississippi river.