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 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.