99 PTS + BRAINLIEST. what political economic and social forces can be credited with the expansion of imperialism in the late 19th century? i need at least a sentence.

with my recent question

i do not believe this was true indefiantly the native americans would have lsot aganist america one they didndt have the resources and allies that america had and 2   indians werent as advanced at the time as they were not 3 americans had the expreince because some of the soliders from other wars fought in that war and were attecked etc

sam houston basically made tx he fought for anrew lead troops in the battle of san jacinto and then became president and james polk