Answer:
loss of control of their government
loss of independence
Explanation:
Advancments in technology
Yes. A country can expand its borders without committing genocide because through not only discussions can these issues be resolved, two different countries can reach agreements on how each of them want the best for their country. It may be beneficial for both or all parties for another country to expand its borders, without being at the expense of human lives.
The political structer changed during the gilded age because a lot of the leaders became rich during this era, causing them to be more invested in business politically.