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.

Here are some things you may not know about the U.S. Army, which will be honored Saturday in Washington, D.C. with a military parade.

On this day in 1775, the Continental Congress, the governing body of the 13 American colonies and later the United States, set up the US Army. The newly formed force was given the job of protecting the colonies against British troops during the Revolutionary War.

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 U.S. Army, established on June 14, 1775, is celebrating 250 years of challenging, empowering, and equipping soldiers Saturday. This year’s slogan, “Be All You Can Be,” reflects the Army’s spirit.