Tens of thousands came to Washington, D.C., for the parade, which was meant to honor the 250th birthday of the U.S. Army, but also happened to fall on Trump's 79th birthday.

The massive military parade that President Donald Trump has long wanted is set to step off from the Lincoln Memorial on Saturday evening, with tanks, bands and thousands of troops.

Trump attended in 2017, early in his first presidency, as U.S. troops marched as guests.