france
The cold war was about how two countries fought each other.
The different countries didn't agree with each other
France and Germany
The Soviet Union and The United States
They threatened each other with Nuclear War.
Having McDonald's has nothing to do with countries going to war with each other. The causes of war are much deeper than whether or not countries have McDonald's.
A war where countries fight each other with nuclear weapons.
france
The cold war was about how two countries fought each other.
To keep peace with each other and to not go into war again with each other.
France with England or Prussia.
Iraq and Iran
Great Britain and France
World War is a war that involves all/or most of the countries fighting in alliances against each other.
Cold War means people (countries/nations) were NOT shooting at each other; no one was dying. They just looked at each other and were looking for an excuse to fight each other.
If there are every simply two countries fighting each other, then it's a typical war. However, when each of those two countries has a group of friendly nations who will help in case of war, then you have a world war.