The "No Kings Nationwide Day of Defiance" is planned to "reject corrupt, authoritarian politics in the United States," organizers say.

On Saturday (January 14), mass protests against President Donald Trump took place across the US at the same time as a military parade in Washington D.C. for the Army’s 250th anniversary, which also fell on Trump's 79th birthday.

The event was one of more than 2,000 “No Kings” rallies held across the country on Saturday, protesting what organizers call “authoritarianism, billionaire-first politics, and the militarization of our democracy.

Around 1,800 protests are set to coincide with President Trump's military parade in Washington, D.C. yet none planned in the U.S. capital. Here's why.

Additional celebrities including Anna Kendrick, Gina Rodriguez-LoCicero and Tessa Thompson were out on Saturday to protest against the Trump administration.

“The most threatening sound to an oligarch is laughter.”

The parade is expected to include about 6,600 soldiers, 50 helicopters and 60-ton M1 Abrams battle tanks, as well as possibly 200,000 attendees and heightened security to match.

As a military parade rolls through Washington, DC, on Saturday – President Donald Trump’s birthday – millions of Americans are expected to protest in what organizers predict will be the strongest display of opposition to Trump’s administration since he took office in January.