In order to be a member in the European Union or EU, countries are required to be a democracy. They all have democratic governments but have different styles of democracy.
The United States and the USSR were the lone remaining superpowers left after World War II.
As a result, they viewed proxy wars much like a chess player viewed moving a pawn. If they could get a strategic advantage in Algeria or El Salvador or Cuba, they would take it and lord it over the losing superpower.
B: It was abortion the most popular