Napoleon conquered much of Europe, Germany included, as Napoleon marched into Berlin he did so through the Brandenburg Gate. This is one of the first instances where the gate is used as a backdrop for political events. This march of triumph is the first in a long tradition, that would be followed by the many.
Napoleon, after marching into Berlin, did the unthinkable, he ordered that the Quadriga be removed and taken back to Paris with him. whether his intention be to display it in Paris or simply hide it from the Germans is unclear. the results were very clear however, the statue was taken and the Germans were furious. the Brandenburg gate became a symbol of resistance for the German people. This is another moment in which the German people altered the meaning of thier beloved Landmark through intentions.
Public Domian {{PD-1923}}
Public Domain {{PD-1923}}
The 19th century is when we see the first permanent major change in design and meaning of the Brandenburg Gate. As Prussian ideologies take a firmer hold within Germany, the Gate begins to show signs of militant ideas. The most direct of these examples is the staff that the goddess wields. In 1814, after the return of the Quadriga and defeat of Napoleon, there were some additions to the staff. An Iron Cross and Prussian Eagle are added atop the Brandenburg Gate, the Gate of peace soon became a gate of victory. 
Public Domain {{PD-1923}}
