Answer:
One example would be fans of the same team, such as the Patriots. Patriot fans have a collective identity of rooting for and supporting that team.
Erikson's main idea of what happens if you do not master the conflict of a given age (the equivalent of a Freudian fixation) is identity crisis. Each conflict has two parts: the successful outcome one wants, and the negative outcome which comes from failing to master the conflict. Tye conflict of adolescence is identity vs confusion. If one should fail to master this conflict, they will be confused as to who they are, will not feel like they fit in, and will waver between varying personality types in an effort to discover their identity.
To declare independence and individual rights
The Germans had sought after an armistice because the German generals believed it to be the only choice to end an unwinnable war for the Germans. The German navy had been grounded since early on in the war, German armies had been destroyed, the people were starving, and the morale of soldiers were so low that they could not continue on fighting.