As millions of Americans protested at “No Kings” rallies across the country, onlookers gathered in Washington on the president’s birthday for a muted celebration.

More than 6,000 soldiers participated in the U.S. Army's 250th anniversary parade in Washington, D.C. — including the Texas A&M University Corps of Cadets.

The procession featured more than 6,000 soldiers, 128 Army tanks, aircraft flyovers, military bands, even robot dogs. Troops wore uniforms representing the Army’s history, including outfits from the Revolutionary War, Civil War, World War II, the Vietnam War and the Global War on Terror.

The president celebrates the 250th anniversary of the US Army as demonstrators hold "No Kings" events from coast to coast.

Palantir, the data analysis and technology firm whose contracts with the federal government are expanding, and Coinbase, a cryptocurrency firm that donated to the president’s inauguration, also sponsored the event. Oracle, a database company whose co-founder is a close friend of Mr. Trump’s, received a shout-out on Saturday as a sponsor.

The parade was the spectacle event Trump had long wanted. It also helped sparked the largest mass opposition to him since his inauguration 145 days earlier.

Sen. Rand Paul criticized the June 14 military parade, arguing that it was too expensive and “glorified” weapons.