A political party would notify people about certain issues for many reasons, one of them (where they would then want to gain interest and support of the public) would that they want to gain political points so they could ensure being re-election.
World War ll Example:
Yet, once World War II began, thousands of African Americans rushed to enlist, intent on serving the nation that treated them as second-class citizens. They were determined to fight to preserve the freedom that they themselves had been denied.
Yes, pigments help create various colors of paint.
Totalitarian government is when a single group completely takes over and makes the people subservient to the state (they make all of the rules) and if there was more than one group, opinions may differ and actions may be more diverse, and it wouldn't have total control over the decisions anymore. Ex: Hitler- changed laws to what he saw fit, changed culture, controlled how people were treated, threw Jew's in concentration camps because of a personal bias, etc. He had total control, thus totalitarian gov.