In Puerto Rico it was useful, in Cuba not so much. Cubans perceived the outcome as occupation and didn't want to have United States occupation in their country. Puerto-Ricans had a form of a civilian government with independence and Puerto-rican citizenship but the country belonged to US.
The Red Scare was a time in the US when Americans were worried and determined to protect the US from Communist influence and protect democracy and capitalism.
The american civil war started 1861 and ended 1865
(Not related just helpful. can't not is a double negative. "I can't not leave'' means I can leave)
The biggest reason is probably we can even travel to Mars. Mars is only one planet away from us. the distance is to far for fuel and time. we would need to go much faster and a lot less fuel just to get to Mars.
As it doubled the land area of the U.S., it also increased goods, services and wealth. Some advocates said that not only did the movement increase the size of the country, expanding to other countries and not just states, but it also added to farm lands needed to produce products and poultry.
