What might be a motive for imperialism in the 21st century?

Following archduke franz ferdinand's assassination, austro-hungarian leaders: a. aided the ottoman empire in its campaign to keep serbia under its control. b. executed nearly all prominent serbs living in austria-hungary c. threatened to invade serbia if serb leaders did not agree to a set of strict demands. d.. formed an alliance with great britain to protect austria-hungary from future attacks.

What role did the alliance system play in preventing austria-hungary and serbia from coming to a compromise settlement?

All of the following were restrictions on free african americans, who lived primarily in the upper south except: