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D. Helped strengthen the power of the federal government.
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The blockade of Berlin was the closing of the borders that shared the United Kingdom and the United States with the Soviet Union in the occupied German territory. The city of Berlin, located in the middle of the current state (Land) of Brandenburg, was in this Soviet zone (very close to the Polish administration area and to oder-neisse). However, in Berlin there were troops from the other three allied armies, who had arrived there according to the pacts celebrated at the Yalta Conference (1945).
The blockade was imposed by the Soviet Union, and affected mainly the western area of Berlin, then controlled by the forces of the United States, the United Kingdom and France. It was applied in response to the monetary reform imposed by these countries.
No.
It is likely that without the printing press, the protestant reformation would have been crushed in its infancy by the Catholic Church as had earlier efforts at reformation.
The reformation made it so that people could trade ideas and build coalitions that the jailing of individuals would not effect.