What are the homogeneous subsection within a large and complex society called

Which of the following was significant for the allied capture of rome? the capture of rome gave the allied powers direct access to the italian-german border and a road to reach berlin. the capture of rome led to the decline of the italian fascists, and those opposed to mussolini were able to regain control of their country. the allied capture of rome promoted an alliance with mussolini who had direct knowledge of hitler’s military strategy. capturing rome drew the german’s attention away from the soviet war front and toward the european theater.

Which empire was called "the sick man of europe? "

What is the name for the main idea behind the settling of western lands by americans in the early-1800s?