Because of large reserves that center around the Persian Gulf, the Middle East often produces as much as two-thirds of the world’s supply of "Petroleum," since this is made from fossil-based oil.
The Manhattan Project was a secret U.S. project to develop nuclear bombs. The correct option in respect to the given question is option "B". During the second World War, the Manhattan Project was a research and development project aimed towards making the first nuclear bomb. It had the support of two other countries and they were Canada and United Kingdom. This project had other dimension to it as well, like gathering information regarding the nuclear project of the Germans. Although the Manhattan project was initially very small, but later on it employed around 130000 people.
The Truman Doctrine can be considered part of the US policy of containment. This idea of containment developed after World War II, as the United States and Soviet Union emerged as global superpowers. These two countries had extremely different ideas on what type of political/economic system should be used. The US was in favor of capitalism and democracy while the Soviet Union favored a communist system. This communist system resulted in government control of the economy and resulted in the severe limitation of citizens rights in the Soviet Union.
The US wanted to contain the spread of communism due to their disapproval of the Soviet Union. One way they did this was through the Truman Doctrine. President Harry Truman described how failing to help countries that are in jeopardy of falling to communism would threaten individual freedoms/liberties on a global scale. To help in this process, Truman and the US Congress dedicated $400 million to Turkey and Greece as a way to stop the spread of communism to these countries. This money, made possible by the Truman Doctrine, would allow for economies of Turkey and Greece to be stabilized and reduced their chances of falling to communism.
Explanation: Long battle
The Long March most commonly refers to the transfer of the main group of the First (or Central) Red Army, which included the leaders of the Communist Party of China, from Yudu in the province of Jiangxi to Yan'an in Shaanxi. In this sense, the Long March lasted from October 16, 1934, to October 19, 1935.
The Communists, under the eventual command of Mao Zedong and Zhou Enlai, escaped in a circling retreat to the west and north, which reportedly traversed over 9,000 kilometers (5600 miles) over 370 days.
