The major factor is that they had different ideologies.
While the United States(US) believe in capitalism, where people should have freedom on their daily basis,such as trading,politics, and speech. It encouraged a free Market. While Soviet Union(USSR) took up communism, which controlled the general market and people do not have the freedom of speech and politics.
Both had the fear of the spread of one another's ideology especially US,was worried that communism would spread to the western Europe.Thus causing the tension and much suspicion between the two nations,leading to Cold War.
Hope it helps!
Prior to World War II, China participated in the Civil War. Nationalists (led by Chain Kai-shek) fought to keep control of the country from the Communists (led by Mao Zedong). When Japan invaded China in July 1937, both sides in the civil war agreed to a ceasefire.
However, after the end of World War II, fighting resumed. From 1945-1949, Mao's forces were supported by common Chinese citizens. Communism was gaining momentum in one of the world's largest nations
Explanation:
en 1916 británicos y franceses se repartieron Oriente Próximo on dos lañives
it led to the events of revolution of 1905, hope this helps
D.
the deliberate modification of Earth’s surface through cultivation of plants and rearing of animals