Palantir, the data analysis and technology firm whose contracts with the federal government are expanding, and Coinbase, a cryptocurrency firm that donated to the president’s inauguration, also sponsored the event. Oracle, a database company whose co-founder is a close friend of Mr. Trump’s, received a shout-out on Saturday as a sponsor.

US President Donald Trump’s long-sought military parade rolled through the streets of downtown Washington on Saturday, but the celebration of the US Army’s 250th anniversary was marred by a day of discord and violence.

The largest military parade in Washington in decades unfolded Saturday alongside hundreds of protests against it, and its chief organizer