The first picture represents the Korean War which was started and ended at the 38th parallel. The Korean War created tensions between the US and USSR because North Korea was Soviet backed and South Korea was backed by the US. The second picture represents the nuclear arms race between the US and the Soviet Union. This arms race created massive tensions between the nations because it showed both was gearing up and ready for all out war. The third picture is of the Nuremberg Trials which was the court trials of many of the German War criminals. It represents the rebuilding of a post WWII world. The fourth picture depicts the Iron Curtain of Europe which was the line between Soviet controlled regions of Europe and Western controlled regions. This Iron Curtain created massive tensions and stress between the Western nations and the US and the USSR because it divided Europe down the middle politically, economically and socially. The fifth and final picture is of a hydrogen bomb which represents the technological advancements of the Cold War. These technological advancements created tensions between the US and USSR because it showed both nations that the other was at any moment going to overtake it which created a sense of constant worry and stress over war, military technology and nuclear weapons.