In preparation for the parade, the city installed more than 200 steel plates and rubber mats to protect D.C.’s historic streets.

WASHINGTON (AP) — Grand military parade in DC marking US Army’s 250th birthday kicks off with tanks, troops and 21-gun salute.

Thousands of people flocked to the nation’s capital Saturday for a Washington-wide celebration to honor the Army’s 250th birthday. The festival at the National Mall included more than three dozen interactive booths,

WASHINGTON (7News) — A military parade celebrated the Army's 250th in Washington D.C., with thousands of people in attendance. Aside from the parade, there was also concert and fireworks as part of the celebration. The celebration also coincides with President Donald Trump’s 79th birthday, National Flag Day, and the Army’s 250th anniversary.

Protesters of the June 14 Army parade in Washington, D.C., "will be met with very big force," President Donald Trump said on June 10.