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.

President Donald Trump watched tanks and soldiers march down Constitution Avenue from a viewing stand near the White House. President Donald Trump delivered remarks at the Army's 250th Anniversary Parade in Washington, D.C.

President Trump is hosting a parade celebrating the 250th anniversary of the U.S. Army today, bringing tanks and soldiers to the streets of Washington, D.C., for the capital's first major military parade in more than three decades.