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.

No Kings” organizers described the events as a “nationwide day of defiance” against President Donald Trump and authoritarianism.

Thousands gathered for the No Kings protest at the Michigan State Capitol building in Lansing on Saturday, June 14.

Protests took place in more than 1,500 cities on the same day that the president's birthday military parade, costing tens of millions of dollars, took place.

Far-right groups are humming with talk of potential violence ahead of massive “No Kings” Day demonstrations that are expected to attract millions of protesters Saturday, according to The Wall Street Journal.

Here's how to stay safe and what to know about your rights if you get arrested, detained or encounter tear gas during Houston's No Kings Day protest.

"No Kings" protests against the Trump administration are taking place today in and around New York City as part of nationwide demonstrations. Fifth Avenue was closed to traffic from 42nd Street to 23rd Street in Manhattan as protesters marched from Bryant Park.