9. How did foreign policy in the United States change in the early nineteen hundreds?

Question

1. It went from imperialism to fascism.
2. It went from aggressivism to passivism.
3. It went from isolationism to imperialism.
4. It went from expansionism to isolationism.

Answer 1

4
In 1898, the United States fought and won a war with Spain. the U.S. gained the Phillipines and Puerto Rico from Spain in that war. This was the last time the United States "expanded". World War I began in 1914, but the U.S. didn't enter the war until 1917. Again in 1939, the second World War began, but the U.S. didn't enter this war until the end of 1941. In both world wars the U.S. would have preferred to not become involved, and in effect, tried to "isolate itself". So we had gone from expansionism with the Spanish/American war of 1898 to the isolationism of the first and second world wars. The United States tried to isolate itself from the rest of the world and not enter the wars of other countries, but could not, and actually had to defend its allies and eventually itself.

1 is out because imperialism would mean the U.S. had an emperor, which it did not. Nor did it ever have a fascist dictator.
2 could be considered if you equate 2 and 4 as being synonymous, however, I don't believe aggressivism and passivism were ever considered the official terms used to describe U.S. policies in the early half of the 19 hundreds. So 2 is basically out as well.
3 is out too because the U.S. never changed from a democracy to an empire. After 1900, the U.S. did not gain anymore territory, and its government has always been people elected by the people unlike an imperialistic form of government that would have recognized lifetime government officials that do not need to be elected.

So therefore, 4 it is.

Answer 2

3. Went from isolationalism to imperialism

Answer 3

The answer is 3.
The Spanish-American War made the US a world power. It was the US first war outside its borders, and the reason it was fighting in the Atlantic and the Pacific simultaneously had to do with Teddy Roosevelt's plan to develop coaling stations and naval bases (e.g. Guantanamo) in both oceans, before he proceeded with the construction of the Panama Canal, starting in 1904.
He himself said it: "We will no longer be contained within our borders!"