"No Kings" marches in all 50 states were reminiscent of some of America's biggest debates, from Vietnam to civil rights.

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.

Thousands turned out to enjoy festivities and a sprawling military parade in Washington, D.C., even as dismal weather forecasts and nationwide anti-Trump “No Kings” protests threatened to dampen the Army’s 250th birthday celebration.

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.

On his 79th birthday, President Trump spent more than three hours on Saturday taking in the scene at a military parade commemorating the 250th anniversary of the U.S. Army.

President Trump delivered remarks at the 250th Anniversary of the U.S. Army Grand Military Parade and Celebration, an event he envisioned.

Meanwhile, "No Kings" protests were scheduled in all 50 states to counter Trump's celebration, in cities like New York, Los Angeles, Philadelphia and Boise.

Here are the people who performed live at the U.S. Army's 250th anniversary parade and President Donald Trump's unofficial birthday party.

Thousands of demonstrators crowded into streets, parks, and plazas across the US, blaring anti-authoritarian chants mixed with support for protecting democracy and immigrant rights.

“Earlier today, during a parade held in support of our nation’s military and organized by President Donald Trump, the song ‘Barracuda’ by Heart was played without permission or authorization from us,“ Wilson said in a post on Instagram late Saturday night.