Answer:
The balance of power theory in international relations suggests that states may secure their survival by preventing any one state from gaining enough military power to dominate all others.
In this case, I could only research this part of your question. Try reading an article about the Concert of Europe.
Hopefully, someone else is capable of fully answering your question.
I apologize for my inconvenience.
Answer:
In 1939, Germany and the Soviet Union secretly invade Poland.
The last one, trust me every other answer here is so totally wrong.
The great awakening focused more on faith while the enlightenment focused more on reason and scientific observation. So your answer would be D
