Both the US and USSR had deliverable nuclear weapons in the 10+ megaton range by 1955.
US: 1945. USSR: 1949
Both the US & USSR begin with letters US. Both the US & USSR used a star on all of their war machines (Ships, Tanks, Aircraft, Trucks, Artillery, etc.). Both the US & USSR extended from the Pacific Ocean to the Atlantic Ocean. Both the US & USSR had sub-states within it. Both the US & USSR had minority populations of people & cultures. Both the US & USSR had fairly matched technologies. Both the US & USSR were spawned from revolutions (1776) & (1917) respectively. Both the US & USSR had frontier expansions: The US went West; the USSR went East.
the USSR
Yes
Enemies.
The problems with the Suez Canal.
The USSR had developed a atomic bomb as well, so the US feared that they would be outnumbered in a nuclear war with the USSR
The atomic bomb was invented in 1933 (by Leo Szilard) and finally built in 1945 (by the US Manhattan Project, which involved hundreds of thousands of people). It was duplicated in 1949 (by the USSR, assisted by information from spies in the US project). It was already in "mass production" by both the US and USSR by the early 1950s , thus not invented by anyone in the 1950s.
British colonialism The problems with the Suez Canal (APEX)
they were both against the british invasion of Egypt
US had up to an order of magnitude more nuclear weapons (or more) than USSR at all times in the 1950s.
Both the US and USSR had deliverable nuclear weapons in the 10+ megaton range by 1955.
no
Relationship was a big conflict between both the USSR leader Stalin and the U.S leader Roosevelt. Another was Stalin's hope for Communism. He wanted this to spread but Roosevelt and Churchill didn't agree with this.
USSR
The 1950s changed the world by introducing us to different music styles and different cultures. The 50s were a big part of history, you too would agree once you have studied about it for 23 years. I wish i lived in the Nifty Fifties!