Which of the following were barriers to escaping the Berlin Wall?

The Wall cut off West Berlin from surrounding East Germany, including East Berlin. The barrier included guard towers placed along large concrete walls, accompanied by a wide area (later known as the "death strip") that contained anti-vehicle trenches, beds of nails and other defenses.

Explanation:

The Berlin Wall separated Germany's capitol, Berlin, after World War II, and divided Berlin into two segments, the East Side, and the West Side of Berlin. This event was a vital and crucial, yet sad part of Germany's history, for many people had family on the other side of Berlin, and some of them never saw their families again, because they had died before the Berlin Wall was destroyed.

Explanation:

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. austria-hungary began seizing british colonies in africa.