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.

A day of opposition to Donald Trump brought out protesters in hundreds of cities across the US on Saturday, creating a split-screen contrast with a military parade in Washington promoted by the president.

California Gov. Gavin Newsom had a brief victory in his lawsuit against President Trump, but an appeals court quickly blocked a federal judge's order.

Trump deployed National Guard troops in Los Angeles in response to violent demonstrations against immigration enforcement.