What is the Berlin Wall? Why do so many people risk their lives to climb it?

After World War II, the capitalist camp headed by the United States and the Oriental Group headed by the Soviet Union competed for world hegemony. Because the main battlefield of World War II was in Europe, the comprehensive strength of European countries was seriously weakened. Germany, one of the axis countries of fascism, was divided into East Germany (following the Soviet Union for socialism) and West Germany (following the United States for capitalism) after being occupied by the United States and the Soviet Union. Due to the development of Stalin model in the Soviet Union, the economic development of Eastern European bloc countries is unbalanced, resulting in a series of employment problems. So with the rapid economic development, East Germany immigrated to West Germany on a large scale. In order not to reduce its influence in the Oriental Group, the Soviet Union built the Berlin Wall to prevent East Germans from emigrating to West Germany.