Ethnic group is that group of people who are known for having a common characteristic. Their common characteristic is only because of the culture or the inheritance that they have been through. Ethnicity is defines as the common cultural identity that the people of these group have.
The U.S stayed neutral because we didn't have a reason to fight.
War Games was just playing on AMC this past weekend. I believe that the sentiment expressed by this film, that there are no winners in a full scale nuclear war, is grounded in fact and not emotions. We already have the example of Hiroshima and Nagasaki to tell us about the devastation possible and the bombs developed later were many times more powerful. Mutual assured destruction was what kept the US and Soviet Union from attacking each other. People had a right to be afraid. We learned that in 1983 the world had a near-miss with nuclear war, when a Russian soldier ignored a false alarm (https://en.m.wikipedia.org/wiki/Stanislav_Petrov) and did not give orders or launch a counter-strike on the USA. We may never know how many times we were on the brink of global destruction.
They needed aggressive officers and troops better trained for desert fighting