Planning insight 1
Army Birthday 2026 is Sunday, June 14, 2026.
Army Birthday 2026: 251 Years on June 14
The U.S. Army celebrates its 251st birthday on Sunday, June 14, 2026. On June 14, 1775, the Second Continental Congress authorized the Continental Army — more than a year before the Declaration of Independence — making the Army the oldest branch of the U.S. military. The date is shared with Flag Day.
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Planning insight 2
2026 date: Sunday, June 14.
Planning insight 3
Birthday: 251st.
Planning insight 4
Founded: June 14, 1775.
Planning insight 5
Founding body: Second Continental Congress.
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Last reviewed: July 2026
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Frequently Asked Questions
How old is the Army in 2026?
The U.S. Army turns 251 years old on June 14, 2026. It was established as the Continental Army by the Second Continental Congress on June 14, 1775.
Why do the Army Birthday and Flag Day share June 14?
It is a historical coincidence: Congress created the Continental Army on June 14, 1775, and exactly two years later, on June 14, 1777, it adopted the Stars and Stripes as the national flag. Both anniversaries are observed on the same day.
Is the Army Birthday a federal holiday?
No. The Army Birthday is a military observance. In 2026 it falls on a Sunday; businesses, banks, and government offices follow their normal schedules.
What is the Army Birthday cake-cutting tradition?
At Army birthday ceremonies, the oldest soldier and the youngest soldier present cut the cake together, often with a saber. The tradition symbolizes the transfer of experience, heritage, and responsibility from senior soldiers to the newest generation.
Which military branch is the oldest?
The Army is the oldest branch, established June 14, 1775. The Navy followed on October 13, 1775, and the Marine Corps on November 10, 1775. The National Guard traces its militia lineage even earlier, to 1636, but as a component rather than a separate branch.