There are two main ways the Soviet Union maintain control of east Germany after World War II: through intimidation and violence against the people of East Germany, and be erecting a giant wall (the Iron Curtain) between the east and west.
<span>a belief or theory that opinions and actions should be based on reason and knowledge rather than on religious belief or emotional response.</span>
Before Spanish colonization, Mexico has established its own class structure among the population. However, after colonization, the class structure changed drastically. The Spanish elites imposed a caste system with different levels of biological mixtures between different ethnic groups living in Mexico which decided one's status in society. Those who were biologically more Spanish enjoy a better standard of life than those from Indigenous or African lineage. The strict hierarchy caused discontent among the people which led to civil unrest and an inevitable revolution.
World War II is generally said to have begun on 1 September 1939, with the invasion of Poland by Germany and subsequent declarations of war on Germany by France and the United Kingdom. ... On 22 June 1941, the European Axis powers launched an invasion of the Soviet Union, opening the largest land theatre of war in history.
convex and concave are two types of lenses
