President Donald Trump was in Paris to watch the Bastille Day Parade early Thursday. The president is attending the event as the guest of French President Emmanuel Macron, NBC News reported.

This year’s parade has dual meaning for France and the United States. The storming of the Bastille prison on July 14, 1789, sparked the beginning of the French Revolution. The United States, meanwhile, is marking the 100th anniversary of its entry into World War I. President Woodrow Wilson asked Congress to declare war on April, 2, 1917. The declaration became official four days later when both houses approved the measure.

Trump and Macron watched as U.S. and French troops marched down the Champs Elysée in western Paris. Some 190 troops from the U.S. Army, Navy and Air Force participated in the parade, along with thousands of French troops, NBC News reported.

The troops included members of the U.S. Army’s 1st Infantry Division, which was founded in 1917.