Millions of people, including a host of world leaders, march in Paris in an unparalleled show of solidarity with the people of France following a three-day spree of terrorist violence.
France Solidarity March

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L-R: Israel's Benjamin Netanyahu, Mali's Ibrahim Boubacar Keita, France's Francois Hollande, Germany's Angela Merkel, the EU's Donald Tusk, and Palestinian President Mahmoud Abbas march during a unity rally in Paris January 11, 2014.

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A general view shows hundreds of thousands of French citizens taking part in a solidarity march (Marche Republicaine) in the streets of Paris, Jan. 11, 2015.

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Thousands of people gather at the Place de la Republique in Paris, France, Jan. 11, 2015.

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Police block a street to hold back the public demonstration near Place de la Republique in Paris, Jan. 11, 2015.