Modern armies use parades for ceremonial purposes, encouragement and show of discipline and to instill confidence in the country's military forces.

The National Victory Celebration was held in Washington, D.C., United States, on June 8, 1991, to celebrate the conclusion of the Gulf War.

A parade and festival will be held in D.C. to celebrate the U.S. Army's 250th birthday on June 14, which also happens to be President Donald Trump's birthday. For those who want to attend the celebration at the National Mall, it's free and and open to the public.