Was the United States or the Soviet Union more responsible for the origins of the Cold War?

Was the United States or the Soviet Union more responsible for the origins of the Cold War? In writing your essay, be sure to provide at least three reasons why one party or the other was more to blame 1. They are both responsible for the Cold War. (three reasons) 2. Mostly, resources are cited from select files. 3. The course book is American Promise Volume 2 4 The professor prefers to strong organization, powerful example, and classical essays Some letters:26–2 George F. Kennan Outlines Containment 213 The Long Telegram , February 22, 1946 26–4 Senator Joseph McCarthy Hunts Communists 221 Speech Delivered in Wheeling, West Virginia , February 9, 1950 27–3 George E. McMillan Reports on Racial Conditions in the South in 1960 27-4 North Dakota Civil Defense Agency How You Will Survive , 1960 Copyright | Bedford/St. Martin's | Reading the American Past: Volume II: From 1865 | Edition 5 | We used two books in this course, one main textbook is the American Promise Volume 2, and one another is Reading the American Past including selected historical documents. 26-4 is a selected document in Reading the American Past. Two links I put before are e-books I found on Google books. It is easier to scan to find resource and examples because we can only find resource from these two books and the lecture PPT.