U.S. Army Birthdays. The U.S. Army was founded on June 14, 1775, when the Continental Congress authorized enlistment of riflemen to serve the United Colonies for one year. The 14 June date is when Congress adopted "the American continental army" after reaching a consensus position in The Committee of the Whole.
To celebrate:
The Army Song: https://www.youtube.com/watch?v=8cvljfwAyXQ
The SSB by Madison Rising: https://www.youtube.com/watch?v=c8C7i9kdEf8
Blood on the Risers (Gory gory, what a hell way to die.) for those that jumped: https://www.youtube.com/watch?v=8ip1pHngiEY&t=4s