Why did the united states become so heavily involved in asia and latin america?

because the connection between Asia Latin America the United States and other countries but I'm not for sure that my answer is correct and also because of self-defence reasons I think

the answer to your question is a. the salt plains

in 1811, he led an expedition, known as the george c. sibley expedition, to improve relations with the pawnee and kansa tribes, and also to locate the rumored jefferson's salt mountain

c) troops march forward in close formation against newer, more accurate weapons