Why did president harry truman react so strongly when north korea attacked south korea?

How did the relationship between settlers and native americans change after the homestead act was put into place ?

During the war of 1812, the united states tried to capture land that is part of which of the following countries? a. france b. spain c. canada d. mexico

What was martin luther king, jr., referencing in the passage that brought him to lead a protest in birmingham?