People are prideful of their nation. Nationalism is a way of explaining or putting in words how much some people really love their country. Some people love their country so much... they made a war. it honestly like that...everyone spent Billions of dollars. just to prove they were better and lost.
C. Remote sensing because the imagery is not in direct contact
During the 1950s, as a result of war and conquering, the status of most countries in Eastern Europe is that they became satellite countries of the Soviet Union at that time. Most countries that neighbor the Soviet Union were heavily influenced by it in terms of politics, military and economy.
Because authoritarian and totalitarian systems allow their leaders to exert unlimited control over their citizens, they can do as they please and their subjects cannot do anything against their rule.