Answer:
The U.S. planned on being neutral in world affairs and especially wars, but intervening in World War 1 especially changed that making the U.S. very active in world affairs especially when defending capitalism and preventing the spread of communism.
Answer: cargo ships
Explanation: I took the test on k12 Hope this helps
The Omaha tribe had been fighting Sioux tribes prior to the period of Lewis and Clark.
Timelines help us line up when things happened, like if you were doing a timeline of your life for example, mark where things happened in order like when you were born, first word, first step, ect ect. Its just a way to put things in order.