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 Donald Trump celebrates his 79th birthday with a military parade on June 14th, a nationwide "No Kings" protest is planned across 2,000 US cities. Organized by groups like Indivisible and the ACLU,

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

The "No Kings" Chicago protest Saturday in Daley Plaza is one of the anchor events for a national anti-Trump movement. It is one of more than 1,800 protests being held nationwide in response to the Trump military parade.

Saturday protests across the nation coincide with a military parade planned by Trump on his birthday and the 250th anniversary of the Army.

Millions of people across the country are expected to join in protest this weekend against Donald Trump’s administration, a movement intended to coincide with the president’s planned military parade in Washington — and the commander-in-chief’s 79th birthday.

Thousands are expected to pack the parkway for the "No Kings" protest. Organizers said they believe Philadelphia's demonstration will be among the largest in the country.