PHILADELPHIA (AP) — 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.

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.

The "No Kings National Day of Mobilizations" is scheduled to take place nationwide Saturday, June 14, with over 30 planned in Vermont.

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.

Police in Sonoma and Napa counties are preparing as North Bay protesters join a nationwide wave of No Kings Day rallies.

As the military presence ramped up in Los Angeles, communities are preparing for the largest protests against Trump since he took office.

One Denver woman is preparing an art installation she hopes will encourage peaceful discourse as a rally takes place Saturday.

Opponents of President Trump and his administration will be planning a nationwide rally on Saturday, June 14, including in Las Vegas.