Follow live updates as the military parade in Washington, D.C., kicks off on Trump's birthday. 'No Kings' protests by opponents are planned across the country today.

Organisers said hundreds of demonstrations were held in a day of defiance to counter a huge military parade hosted by Trump.

The DC "No Kings" protest is marching to the White House on Saturday afternoon as President Trump hosts a celebration for the 250th anniversary of the U.S. Army.

A massive military parade to celebrate the U.S. Army’s 250th anniversary, requested by President Donald Trump to coincide with his 79th birthday, rolled through Washington D.C. on Saturday, as opponents of the president’s agenda rallied in hundreds of cities nationwide for “No Kings” protests.

The parade, honoring the Army’s long-planned 250th anniversary celebration and coinciding with Trump’s 79th birthday, is set to step off from the Lincoln Memorial under the threat of stormy weather in Washington and protests around the country tied to a turbulent week of immigration enforcement that has involved military deployment in Los Angeles.

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

The president, on his 79th birthday, sat on a special viewing stand south of the White House to watch the display of American military might.

At least one demonstration, about 70 miles from Washington, D.C., in Northern Virginia, was met with violence when a man intentionally drove an SUV through a crowd of departing protesters, striking at least one person,