PHILADELPHIA — Cities large and small were preparing for major demonstrations Saturday across the U.S. against President Donald Trump, as officials urge calm, National Guard troops mobilize and Trump attends a military parade in Washington to mark the Army’s 250th anniversary.

Opponents of President Donald Trump’s policies rally Saturday, June 14 at Dallas City Hall, in Fort Worth, Frisco, Arlington, Denton, Carrollton, Flower

Texas police say there are more than 10,000 people in attendance at the Capitol for Saturday's 'No Kings' protest. Follow for live updates.

Tens of thousands of Americans joined "No Kings" protests across the United States against the Trump administration.

The Philadelphia protest is something of a flagship demonstration amid nationwide actions as Trump holds a controversial military parade in Washington, D.C.

Millions marched in cities across the U.S. on Saturday as part of the nationwide "No Kings" demonstrations, according to event organizers

Across the country, relatively few disruptions were reported during protests and marches where the mood ranged from joyful to defiant.

Chicago’s “No Kings” rally downtown included fiery speeches, shouts and a peaceful march, part of a national slate of events planned around the country to protest President

The organizers of this weekend's upcoming "No Kings" protests have issued a video reminding people about the event. The video, released on the No Kings website, reminds those planning to attend of details and calls on people to join the protests.

The numbers have skyrocketed': protest organizers expect massive crowds nationwide on June 14, including up to 250,000 in Los Angeles.

Army's 250th anniversary celebrated with a military parade in Washington, D.C., on Trump's birthday. 'No Kings' protests by opponents are planned across the country.