When it comes to the us becoming a imperial power, their main goal was economic expansion. now their ideals were good but since they started being an imperial power the economy has gone rather worse. so to answer your question their goals were good not have not been achieved.
Answer:
go to this websight it will explain a lot
Explanation:
http://afe.easia.columbia.edu/special/japan_1900_power.htm
<span>i think is this one -adoption of a social caste system </span>