My view and opinion on the cold war

Cold war took place as soon as the WWII was over. Cold war was a Western Bloc and powers in the Eastern Bloc. Growing out of post-World War II tensions between the two nations, the Cold War rivalry between the United States and the Soviet Union that lasted for much of the second half of the 20th century resulted in mutual suspicions, heightened tensions and a series of international incidents that brought the world’s superpowers to the brink of disaster. 
I believe that Soviet Union were primarily responsible for the start of the Cold War. United States was mostly trying to defend themselves which was basically being part of war but it was definitely the Soviets triggered the Cold War after the end of WWII. It can be seen in Churchill's Iron curtain Speech that "famous cities and the populations around them lie in what I must call the Soviet sphere in one form or another, bot only to Soviet influence but to a very high and in some cases increasing measure of control from Moscow". "In a great number of countries, far from the Russian frontiers and throughout the word, Communist fifth columns are established and work in complete unity and absolute obedience to the directions they receive from the Communist center". And this is why Churchill mentions how he believe that Soviet Russia is desiring to have war however they are not willing to be part of the war. This proves that Britain did not trigger any of the cold war events yet it was the Soviet Russia that started to spread their influence.  And even when they were negatively affected by the soviets at the first place, they still did not go into war mode which shows that they were wanting peace and neutrality. This document is a reliable source because its a modified version of Winston Churchill's speech but it is biased in a way that leader of one country is making these claims and he must have said things to make Britians sound more innocent.  

Also, Truman doctrine also shows how US was playing the role of protecting yet in another perspective it can be seen as another threat from soviet perspective. However Truman Doctrine does strongly state that US finds it crucial for them to protect other nations from turning communist. This means that all that US was trying to do was protect other nations from turning communist who were not communist before. Truman doctrine speech was delivered by President Truman and it is reliable with the same reason as Churchill's speech however could be biased with the same reason as well.