Army's 250th anniversary celebrated with a military parade in Washington, D.C., on Trump's birthday. 'No Kings' protests by opponents are planned across the country.

By Phil Stewart, Jeff Mason, Brad Brooks and Karl PlumeWASHINGTON/LOS ANGELES/CHICAGO (Reuters) -President Donald Trump's long-sought military parade rolled though the streets of downtown Washington on Saturday,

Thousands of demonstrators crowded into streets, parks, and plazas across the US, blaring anti-authoritarian chants mixed with support for protecting democracy and immigrant rights.

The parade in Washington, D.C., celebrating the 250th anniversary of the U.S. Army ended with a fireworks show. Meanwhile, protesters clashed with police in Los Angeles. Follow along for live updates,

President Trump spoke briefly after watching the procession of troops and military vehicles, hailing the Army at the event marking its 250th anniversary.

The parade was the spectacle event Trump had long wanted. It also helped sparked the largest mass opposition to him since his inauguration 145 days earlier.

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.

Law enforcement is on high alert for Saturday's "No Kings Day" planned protests in response to Trump's controversial military parade in Washington D.C.