Answer:
In the early morning hours of August 13, 1961, the people of East Berlin were awakened by the rumbling of heavy machinery barreling down their streets toward the line that divided the eastern and western parts of the city. Groggy citizens looked on as work details began digging holes and jack-hammering sidewalks, clearing the way for the barbed wire that would eventually be strung across the dividing line. Armed troops manned the crossing points between the two sides and, by morning, a ring of Soviet troops surrounded the city. Overnight, the freedom to pass between the two sections of Berlin ended. Running across cemeteries and along canals, zigzagging through the city streets, the Berlin Wall was a chilling symbol of the Iron Curtain that divided all of Europe between communism and democracy. Berlin was at the heart of the Cold War. In 1962, the Soviets and East Germans added a second barrier, about 100 yards behind the original wall, creating a tightly policed no man's land between the walls. After the wall went up, more than 260 people died attempting to flee to the West. Though Kennedy chose not to challenge directly the Soviet Union's building of the Berlin Wall, he reluctantly resumed testing nuclear weapons in early 1962, following the lead of the Soviet Union.
Explanation:
I don't really know how to answer your question with the choices you have given, but that is the best I can do. Hope this helps.
-thunderbolt07
