Coinciding with Trump's 79th birthday, the parade will feature tanks, bands and thousands of troops in honor of the Army’s 250th anniversary celebration.

In Washington, D.C., scores of people have shifted from the Army festival to the parade route, walking west toward the Washington Monument. The protests have—for now—mostly died down. It’s a hot, steamy Washington evening,

Whether you're watching from home or braving the crowds in D.C., here's everything you need to know about Saturday’s 250th U.S. Army Birthday celebration and Grand Military Parade, led by President Donald Trump.