Using your work on Churchill's Iron Curtain speech rank the following into order (1 most important, 3 least important) in regard to their importance in causing Cold War Tensions

a/ The Development of the Atomic Bomb

b/ The Potsdam Conference

c/ Churchill's Iron Curtain speech

For each, explain why you have ranked it as you have and why it is more / less important than the others (practice for the 10 mark essay question)