What event did NOT help shape the United States? land from Spain and France Louisiana Purchase land from Ireland Mexican-American War​

Mexican American War

Explanation:

Polk incited it, the theft of land, and the servitude extension. Three fundamental reasons America was inappropriate in going into battle with Mexico were that President James k. Polk incited it, America's theft of Mexico's territory and the development of slavery. That is the reason America was uncalled-for to go into battle with Mexico.

Brainliest?

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.

me on my last question.