Explain how the United States went from isolationism to a role of internationalism in our world today. 4 sentences long please !!!

What were some of the most important native items adopted by europeans ? what impact did they have on european life ?

By the late 1930s, how were u. s. officials beginning to view japanese policies of expansion? a. they attempted to join forces with japan so as to increase u. s. territory. b. they warned them to stop expansionist actions or face potential u. s. intervention. c. they sent representatives to japan to work out territorial rights in a diplomatic fashion. d. they became fearful of their military power

This map shows north korea and south korea today. how does this map reflect the impact of the korean war?