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Precision on Bastille Day in Paris

Philippe Wojazer / Reuters

Tanks are aligned on the Champs Elysee before the traditional Bastille Day parade in Paris, July 14, 2011.

Eric Feferberg / Pool via EPA

French soldiers from a Republican guards infantry regiment during the annual Bastille day parade on the Champs-Elysees in Paris, on July 14, 2011.

Horacio Villalobos / EPA

French planes perform a fly-over of the Arc de Triomphe during Bastille Day Military parade ceremonies in Paris, France, July 14, 2011.

The oldest and largest regular military parade in Europe is held on the morning of July 14, on the Champs-Élysées. The date marks a turning point in the French Revolution in 1789 when the citizens of Paris stormed the Bastille prison and released seven prisoners inside.