Answer: Hope this helps <3
Explanation:
Russia and France entered into alliance in 1893. The new and unlikely friendship between these three powers heightened Europe fears of 'encirclement' and deepened the divide among the European powers. Imperial rifts worsened these divisions and tensions.
NATO was designed to improve on the alliances of the past and to modernize the alliance system in light of the threat of nuclear power. The idea of collective security meant that war could trigger alliances linked on social, political and economic and ideological frameworks as well as a deterrent in terms of nuclear power.
I’m not so sure about the north but i know that the south was very angry because they claimed it was an inaccurate depiction of slaveholders. I hope this helps!
D.new theories reflected changes that were happening in society at large