The answer is slavery it says it in the question
Answer 1:
The Concert of Europe refers to a general consensus among the Great Powers of 19th-century Europe to maintain the European balance of power, political boundaries, and spheres of influence.
Answer 2:
The old traditional empires stretched over continents gave way in Europe to the nation-state. Change was coming.
Answer:
The first time war broke out between Iraq and Great Britain both countries had strong hatred toward each other, the reason Iraq did not like Great Britain was because Great Britain had their men on Iraqi soil. At the start of World War II the tension between the two countries had diminished and no hatred has been between the two countries since.
Explanation:
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