Which U.S. military branch marked its 250th birthday on June 14, 2025, ahead of America250?

The United States Army marked its 250th birthday on June 14, 2025, ahead of the broader America250 observance.

The Continental Congress established the Army on June 14, 1775, during the Revolutionary War, more than a year before the Declaration of Independence was adopted. That anniversary made the Army’s 250th birthday distinct from the nation’s 250th anniversary in 2026.

A large celebration and military parade took place in Arlington, Virginia, and Washington, D.C. The route connected the Pentagon area with the National Mall, and the program included soldiers, historic uniforms, military vehicles, aircraft, horses, and musical performances.

June 14 is also Flag Day in the United States. The overlap gave the 2025 event two national commemorative associations, while the Army anniversary itself was based on the 1775 congressional resolution creating the force.