Which U.S. military branch celebrated its 250th anniversary in 2025, ahead of America250?

The United States Army celebrated its 250th anniversary in 2025, ahead of the nation's America250 observances.

The Army traces its official founding to June 14, 1775, when the Second Continental Congress established the Continental Army during the Revolutionary War. That date is also celebrated annually as the Army's birthday.

A major 250th Birthday Parade took place in Arlington, Virginia, and Washington, D.C., on June 14, 2025. The event was part of the lead-up to the United States Semiquincentennial and was held on Flag Day.

The Army is older than the modern Air Force, which became an independent military branch in 1947. The Navy and Marine Corps also trace their origins to 1775, but the 2025 parade specifically commemorated the Army's anniversary.