Question

Why did the united states soviets end up on opposite sides of the cold war?

Answer 1

Their political differences lead to the to mistrust each other. Think about the Red Scare in the US. Plato test :)

Answer 2

The Soviet Union was a communist country and the United States is a democracy. So since they had very different political philosophies it lead to a deep mistrust of eachother. This is how they ended up on opposite sides of the Cold War.
Hope this helped you!! ( :