The parade and festival, coinciding with Trump’s birthday and Flag Day, will last nearly sun-up to sun-down. Here's a full schedule of the day's events.

Thousands of people lined Constitution Avenue while soldiers walked through the center of Washington.

Trump and other officials watched the procession of soldiers and armored vehicles from a reviewing stand, but many people on the ground in Washington did not witness any of the show of force. Instead, they were treated to vivid demonstrations of the tensions inspired by Trump’s administration.

The military parade is slated for Saturday, June 14, in the heart of Washington, D.C., spanning six blocks and bisecting the National Mall. Organizers say the procession begins at 3:30 p.m. PST.

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.

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MSNBC hosts Ali Velshi and Chris Hayes noted a difference in the atmosphere at the Army's 250th celebration in Washington, D.C., compared to President Trump's rallies.

In preparation for the parade, the city installed more than 200 steel plates and rubber mats to protect D.C.’s historic streets. Each plate weighed more than 1,000 pounds, and as of Sunday evening, crews were seen using heavy equipment to lift the final ones from Ohio Drive, Constitution Avenue, and Independence Avenue.

A 33-mile trip from one protest in Annapolis, Md., to the parade grandstand in front of the White House was like a journey between two different countries.

Those watching Donald Trump's birthday parade in Washington DC noticed the soldiers were not walking in lockstep, which is typical of military members in uniform