What is 1 thing a naturalized citizen can not do

How did settlers decide where to live ?

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.

At the beginning of the war, why was hitler allowed to continue his aggression without resistance from other european countries