A picture taken on July 14, 2014 from a Boeing C135 refueling tanker shows two French Rafale fighter planes, flying over the French capital during the annual Bastille Day military parade on the Champs-Elysees in Paris. France has issued an unprecedented invitation to all 72 countries involved in World War I to take part in its annual Bastille Day military parade. (Photo by Franck Pennant/AFP Photo)

Parisian firefighters prepare their uniforms prior to the start of the annual Bastille Day military parade in Paris, on July 14, 2014. (Photo by Kenzo Tribouillard/AFP Photo)

The Algerian flag is carried by parade participants in Paris, on Jule 14, 2014. (Photo by Benoit Tessier/Reuters)

Tanks rumble down the Champs Elysee during the traditional Bastille Day parade in Paris, July 14, 2014. (Photo by Benoit Tessier/Reuters)

Members of the Foreign Legion parade during the traditional Bastille Day Parade on the Champs Elysees in Paris, Monday, July 14, 2014. (Photo by Remy de la Mauviniere/AP Photo)

Troops march down the Champs-Elysees avenue during the traditional Bastille Day military parade in Paris July 14, 2014. In the background, the Arc de Triomphe. (Photo by Thomas Samson/Reuters)

France's President Francois Hollande (L) and French Army Chief of Staff, General Pierre de Villiers ride in a command car during the traditional Bastille Day parade on the Champs Elysees in Paris July 14, 2014. (Photo by Benoit Tessier/Reuters)

Youths release doves at the end of the traditionall Bastille Day parade on the Champs Elysees in Paris, July 14, 2014. The year 2014 marks the 100th anniversary of the start of the First World War. (Photo by Benoit Tessier/Reuters)

High ranking officers from various countries salute during the traditional Bastille Day parade on the Place de la Concorde in Paris, July 14, 2014. The year 2014 marks the 100th anniversary of the start of the First World War. (Photo by Charles Platiau/Reuters)

Soldiers of the National Active Non-Commissioned Officers School march during the traditional Bastille Day parade on the Champs Elysees avenue in Paris, July 14, 2014. (Photo by Charles Platiau/Reuters)

French President Francois Hollande (R) shakes hand with military personnel after the traditional military parade as part of the Bastille Day celebrations in Paris, France, 14 July 2014. (Photo by Etienne Laurent/EPA)

Soldiers wearing French WWI uniforms, known as “Poilus”, march in traditional the military parade as part of the Bastille Day celebrations in Paris, France, 14 July 2014. (Photo by Ian Langsdon/EPA)

French troops of the Pionneers of the 1st Foreign Regiment march in the traditional military parade as part of the Bastille Day celebrations in Paris, France, 14 July 2014. The Bastille Day, the French National Day, is held annually on 14 July to commemorate the storming of the Bastille fortress in 1789. (Photo by Ian Langsdon/EPA)

SDTI F-305 type drones are set on trucks prior to the start of the annual Bastille Day military parade on the Champs-Elysees avenue in Paris, on July 14, 2014. (Photo by Kenzo Tribouillard/AFP Photo)

French soldiers wearing WWI French soldiers “Poilu” uniforms parade on the Champs-Elysees during the annual Bastille Day military parade on July 14, 2014 in Paris, France. (Photo by Antoine Antoniol/Getty Images)

French firefighters march down the Champs-Elysees avenue in Paris during the annual Bastille Day military parade on July 14, 2014. France has issued an unprecedented invitation to all 72 countries involved in World War I to take part in its annual Bastille Day military parade. (Photo by Miguel Medina/AFP Photo)

A Boeing C135 (C) refueling tanker followed by two Rafale fighter jets fly in formation over the Champs-Elysees avenue in Paris during the annual Bastille Day military parade, on July 14, 2014. (Photo by Miguel Medina/AFP Photo)

Congolese and Macedonian (R) soldiers march down the Champs-Elysees avenue in Paris during the annual Bastille Day military parade on July 14, 2014. France has issued an unprecedented invitation to all 72 countries involved in World War I to take part in its annual Bastille Day military parade. (Photo by Miguel Medina/AFP Photo)

Students of the special military school of Polytechnique parade on July 14, 2014 on the Champs Elysees avenue in Paris during the annual Bastille Day military parade. (Photo by Stephane De Sakutin/AFP Photo)

A picture taken on July 14, 2014 from a Boeing C135 refueling tanker shows two French Rafale fighter planes, flying outside the French capital, before taking part in the annual Bastille Day military parade on the Champs-Elysees in Paris. France has issued an unprecedented invitation to all 72 countries involved in World War I to take part in its annual Bastille Day military parade. (Photo by Franck Pennant/AFP Photo)

Nine alphajets of the French Air Force Patrouille de France release trails of blue, white and red smoke, the colors of French national flag, as they fly over the Champs-Elysees avenue during the annual Bastille Day military parade in Paris, on July 14, 2014. (Photo by Thomas Samson/AFP Photo)

Men dressed in vintage American and French World War I military uniforms take part in a military camp reconstitution in the Tuileries Garden in Paris on the eve of Bastille Day, on Jule 14, 2014. (Photo by Benoit Tessier/Reuters)

People take part in the French Institute Alliance Francaise's street fair to celebrate Bastille Day in New York on July 13, 2014. Each year, Bastille Day on 60th Street brings the best of France to New York for an afternoon of activities. (Photo by Timothy A. Clary/AFP Photo)

Men dressed in Austro-Hungarian World War I military uniforms stand outside a tent at a WWI military camp reconstitution in the Tuilleries Garden in Paris on July 13, 2014, on the eve of Bastille Day, France's National Day. (Photo by Thomas Samson/AFP Photo)

Crepes are displayed during the French Institute Alliance Francaise's street fair to celebrate Bastille Day in New York on July 13, 2014. (Photo by Timothy A. Clary/AFP Photo)

Villagers in revolutionaries' costumes gesture around a wooden and cardboard fortress and take part in the commemorating of the storming of the Bastille during Bastille Day, in Lavaré, western France. (Photo by Jean-Francois Monier/AFP Photo)

Villagers in revolutionaries' costumes gesture around a wooden and cardboard fortress and take part in the commemorating of the storming of the Bastille during Bastille Day, in Lavaré, western France, on Jule 14, 2014. (Photo by Jean-Francois Monier/AFP Photo)

Villagers in revolutionary costumes gesture and take part in the commemorating of the storming of the Bastille during Bastille Day, in Lavaré, western France. In the dark night the villagers will take the Bastille and will set it on fire while dancing the carmagnole. (Photo by Jean-Francois Monier/AFP Photo)

The Eiffel Tower is illuminated during the traditional Bastille Day fireworks display in Paris July 14, 2014. (Photo by Benoit Tessier/Reuters)

Fireworks light up the sky near the Old Port as part of the end of the traditional Bastille Day celebrations in Marseille, July 14, 2014. (Photo by Philippe Laurenson/Reuters)

Fireworks light up the sky near the Old Port as part of the end of the traditional Bastille Day celebrations in Marseille, July 14, 2014. (Photo by Philippe Laurenson/Reuters)

Fireworks light the sky near the Eiffel Tower in a show called “Guerre et Paix” (War and Peace) as part of events to mark the centenary of the First World War and to end the traditional Bastille Day celebrations in Paris, July 14, 2014. (Photo by Gonzalo Fuentes/Reuters)

The Eiffel Tower is illuminated during the traditional Bastille Day fireworks display in Paris July 14, 2014. (Photo by Benoit Tessier/Reuters)

Bastille Day fireworks explode over the Seine river next to the Eiffel Tower in Paris Monday night, July 14, 2014. Bastille Day commemorates the storming by Parisians of the Bastille prison on July 14, 1789, setting off the French Revolution that toppled King Louis XVI and put an end to monarchy. (Photo by Jacques Brinon/AP Photo)