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.

In Washington, D.C., scores of people have shifted from the Army festival to the parade route, walking west toward the Washington Monument. The protests have—for now—mostly died down. It’s a hot, steamy Washington evening,

Tanks and thousands of troops will soon take to Washington, D.C., streets for the Army's 250th anniversary on President Donald Trump's birthday.

Nearly 2 in 3 U.S. adults — 64% — oppose the use of government funds for this weekend's military parade in Washington, D.C., celebrating the Army's 250th birthday, according to new data from the NBC News Decision Desk Poll,

U.S. Capitol Police arrested about 60 veterans Friday evening during a protest of the appearance of troops in an Saturday’s Army celebration in Washington and at immigration protests in Los Angeles.

Here is a rundown on what attendees need to know ahead of the U.S, Army's 250th Anniversary Celebration in Washington, D.C.

The U.S. Army showcased some of the aircraft that will be flying over Washington for the 250th anniversary of the Army on Saturday. (AP Video: Nathan Ellgren)