President Donald Trump praised the United States Army as the “greatest, fiercest and bravest fighting force” at the conclusion of a grand display of military might in the nation’s capital Saturday as the Army celebrated its 250th birthday with a parade.

Thousands of Americans flocked to downtown D.C. in "Make America Great Again" hats and patriotic gear displaying Old Glory despite the balmy weather and thunderstorms brewing.

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 - which which fell on Trump's 79th birthday - involved nearly 7,000 soldiers, flyovers and fireworks.