Arc de Triomphe
20th century

The sword carried by the Republic in the Marseillaise relief broke off on the day, it is said, that the Battle of Verdun began in 1916. The relief was immediately hidden by tarpaulins to conceal the accident and avoid any undesired ominous interpretations.

On 7 August 1919 three weeks after the Paris victory parade in 1919 (marking the end of hostilities in World War I), Charles Godefroy flew his Nieuport biplane under the arch's primary vault, with the event captured on newsreel. Jean Navarre was the pilot who was tasked to make the flight, but he died on 10 July 1919 when he crashed near Villacoublay while training for the flight

Following its construction, the Arc de Triomphe became the rallying point of French troops parading after successful military campaigns and for the annual Bastille Day military parade. Famous victory marches around or under the Arc have included the Germans in 1871, the French in 1919, the Germans in 1940, and the French and Allies in 1944 and 1945. A United States postage stamp of 1945 shows the Arc de Triomphe in the background as victorious American troops march down the Champs-Élysées and U.S. airplanes fly overhead on 29 August 1944. After the interment of the Unknown Soldier, however, all military parades (including the aforementioned post-1919) have avoided marching through the actual arch. The route taken is up to the arch and then around its side, out of respect for the tomb and its symbolism. Both Hitler in 1940 and Charles de Gaulle in 1944 observed this custom.

By the early 1960s, the monument had grown very blackened from coal soot and automobile exhaust, and during 1965–1966 it was cleaned through bleaching. In the prolongation of the Avenue des Champs-Élysées, a new arch, the Grande Arche de la Défense, was built in 1982, completing the line of monuments that forms Paris's Axe historique. After the Arc de Triomphe du Carrousel and the Arc de Triomphe de l'Étoile, the Grande Arche is the third arch built on the same perspective.

In 1995, the Armed Islamic Group of Algeria placed a bomb near the Arc de Triomphe which wounded 17 people as part of a campaign of bombings.

On 12 July 1998, when France won the FIFA World Cup for the first time after defeating Brazil 3–0 at the Stade de France, images of the players including double goal scorer Zinedine Zidane and their names along with celebratory messages were projected onto the arch.
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