By forming various organizations.
The European Union, for example, unites Europe (Minus Britain these days) under one banner, thus preventing fighting.
A more direct example is the North Atlantic Treaty Organization. NATO protects the "North Atlantic" and Europe from terrorists and invading countries by using the combined military strength of multiple nations.
The Civil War.
The Dred Scott decision is a shameful decision that rightfully angered abolitionists, deepened divides, and helped lead to the Civil War.
Answer:
Great Britain
Explanation:
Everyone was told they had to evacuate but and they agreed to do so but ended up staying to hold their forts
<span>To separate it from the rest of the world!</span>