Hi,
The Lusitania was sunk in 1915 and the US did not enter the war until almost two years after the sinking. The sinking of the Lusitania and the American reaction to that sinking caused the Germans to temporarily halt their policy of unlimited submarine warfare.
Side note: Found the answer with this link :)
https://www.enotes.com/homework-help/what-impact-did-sinking-lusitania-have-what-came-418703
You have to be more specific like you don’t show the passage
Indian Territory, also known as the Indian Territories and the Indian Country, was land within the United States of America reserved for the forced re-settlement of Native Americans. The general borders were set by the Indian Intercourse Act of 1834. The territory was located in the Central United States.