The United States Army — the military's oldest branch — will soon celebrate a milestone birthday. Here's when and how you can observe and celebrate the Army's 250th birthday. The United States Army will celebrate its 250th birthday on Saturday, June 14.

On June 14, 1775, the Continental Congress voted to replace the colonies' part-time militias with a full-time army – and after 1,300 battles and skirmishes, the Army, led by Gen. George Washington, defeated the British Empire,

It's the U.S. Army's birthday. Originally created as a small force, its soldiers have played a major role in the U.S.'s growth and defense.

Members of the APG community planted 250 black-eyed Susan flowers at the Living Legacy Forest to commemorate the Army’s

In 1775, the Continental Congress established the Army as the first U.S. military service. In 1777, the Stars and Stripes became the national U.S. flag. In 1922, Warren G. Harding became the first U.S. president to broadcast a message over the radio. The occasion was the dedication of the Francis Scott Key Memorial in Baltimore.

America’s oldest military service turns 250 on Saturday. If you see an active duty, former, or retired member of the Army, wish their service a happy birthday.

The massive military parade drew tanks and thousands of soldiers and coincided with nationwide protests against Trump and his policies.

Army's 250th anniversary celebrated with a military parade in Washington, D.C., on Trump's birthday. 'No Kings' protests by opponents are planned across the country.