The Grand Alliance was a military alliance subsisting of the Soviet Union, the United Kingdom, and the United States. Towards the close of the World War Two, the Grand Alliance began to slowly fall apart. Hitler, the common enemy was defeated which led to the start of the Cold War. The Cold war was a period of conflict between nations which did not involve direct military action but progressed through a series of economic and political actions, and propaganda. Due to the contrasting nature of communism and capitalism, caused the grand alliance to break down.The United States of America were Capitalists, their primary pillars of capitalism are freedom of the press, freedom of protests, and free elections. Thus, whatever produced by an American citizen belonged to them. On the other hand, the USSR was a communist nation. There didn’t give much freedom at all. The rights given in the USA were forbidden in the USSR. If one were to protest he or she would face serious prosecution. When it was time for elections the government would decide rather than the people. Any sort of profit was shared equally among the population.Economically both countries were significantly different, naturally, they both wanted what’s best for themselves and wanted to better their economy. Neither the US or the USSR was economically stable. The United States is one who believes that the individual should have the right to compete with each other with the least amount of state interferences and produce as much profit as possible. The Individuals are encouraged to work hard with a promised reward. Capitalists allow for the division between poor and rich. All businesses and farms are owned by the state on behalf of the people. On the other hand, the USSR believed that all goods should be distributed to individuals by the state. Therefore everyone is equal.The grand alliance had key events in which all the countries were put in situations where they needed to act fast and raw. Conferences such as the Potsdam conference is a very good example. In the meeting, they discussed some consensus on the German economy, reparations, punishment for war criminals, and land boundaries. It was. Due to some misunderstandings and ideological differences between Churchill, Roosevelt, and Stalin it left them no choice but to declare war. The Tehran war conference is also a place of ideological differences and misunderstandings which lead to the outbreak of the Cold War, due to the fact it stirred up the most controversy and didn’t end on a positive note nor did it start on one. The Tehran meeting was held after the conference in Casablanca. Stalin wasn’t invited to Casablanca for the conference. Due to that, the relationships between the three men at the Tehran meeting was already hurt. Stalin was suspicious that Roosevelt and Churchill wanted to go against him. Later on, the three men clashed in the Conference about Poland and other European countries that bordered with Germany. Stalin was one who believed that independent countries were a direct security threat to Russia. For the reason that they had been very weak to let Germany attack the Soviet Union many times. Both the United States and the United Kingdom wanted the countries to be independent, but not under communist rule.The Cold War began right after the end of the Second World War. Involving a conflict between the Soviet Union and the United States including their allies (NATO). Despite the fact the war started off as a nonviolent conflict between the Soviet Union and the United States, wars did happen the indirect result of the Cold War. The cause Cold war is a very controversial topic. Its agreed that it is an ideological conflict. Timothy White, a reputable cold war historian who is a prime example of one who believes it is caused by ideological differences “Despite the divergence of opinion concerning the origin and nature of the Cold War, there is an increasing consensus that shapes Cold War historiography. While scholars may have been blinded by loyalty and guilt in examining the evidence regarding the origins of the Cold War in the past, increasingly, scholars with greater access to archival evidence on all sides have come to the conclusion that the conflicting and unyielding ideological ambitions were the source of the complicated and historic tale that was the Cold War.” Brian Grassie as well believes that the ideological difference was what caused the Cold War “The Cold War was caused by the attempt of one state to impose its ideology on the rest of the world. That state was not the US, which demilitarized immediately after the war. That ideology was not the democracy.”. If the cause of the Cold War is the ideological difference, the differences are thus the cause of the breakdown of the grand alliance.