Many consider July 4, 1863 to be the turning point of the American Civil War. Two important, famous, well-documented battles resulted in Confederate defeats: the Battle of Gettysburg (Pennsylvania), July 1-3, and the Fall of Vicksburg (Mississippi), July 4. However, two other major, lesser-known events resulted in two additional Confederate defeats. Both losses, one in Tennessee and one in Arkansas, were influenced by the Vicksburg Campaign.
A volcanic eruption or extreme flooding.
Answer:
b. To prevent Eastern Germans from leaving.
Explanation:
The Communist governmental structure regime was falling apart in the waning days of the Cold War, and to ensure that Eastern Germans were unable to run away into sections of West Germany, the USSR & Eastern German government erected the Berlin Wall. This cut off all communications of West Berlin to the Western half of Germany as well, which initiated the Berlin Airlift. Following the Berlin Airlift, the USSR lifted the wall, and soon fell into disarray after.