Reading time: 5 Minutes
MWi Hack:
- This week, read the oath aloud. The full text takes about 30 seconds. Most people who took it haven’t read it since they raised their hand. See what it sounds like now. The Oath of Enlistment and the Oath of Commissioned Officers are both printed at the end of this article.
MWi Summary:
- The military oath is 250 years old. It was first sworn by Continental Army soldiers in June 1775, making it one of the oldest continuous institutional commitments in American life.
- Unlike a contract, an oath commits body, heart, and soul to something larger than a single life. It has no expiration date, no escape clauses, no termination date.
- The phrase “against all enemies, foreign and domestic” entered the oath after the Civil War, in 1862, when Congress resolved that loyalty to the Constitution and loyalty to the United States were the same thing.
- During World War I, the oath was changed for draftees and the reference to the Constitution was removed entirely. It wasn’t restored until 1962.
- The 1962 change was partly a push for dignity: the Senate testimony argued enlisted personnel deserved the same “comparable dignity and comparable trust” as officers. Since then, both oaths are essentially identical.
- There is no termination date in the oath. The commitment doesn’t end when service does. That, the author argues, is what makes veterans distinct.
Two hundred thousand Americans raise their right hand every year. Most of them are 19. Almost none of them appreciate the full weight of what they’re doing — which is exactly what makes it worth understanding 250 years in.
Each year, over 200,000 Americans, average age of 19, raise their right hand and pledge publicly to support and defend the Constitution of the United States against all enemies, foreign and domestic.
It’s hard to imagine any of them appreciating the full gravity of that act. Reciting the words, affirming the commitment aloud, seems like a quaint formality from a bygone age. Oaths are like handshakes, Christmas trees, and saying “God Bless You” when someone sneezes. We hang on to them out of habit, without quite knowing why.
Oaths, in fact, are ancient. Every culture in history has had them. They made sense in a pre-literate world, when vassals vowed fealty to lords and subjects pledged themselves to kings. But do they still have a place in our hyper-litigious age of contract law?
The answer is yes, because the oath is more than a contract. It is, in the words of military historian Todd DePastino, “the public commitment of a person’s whole being — body, heart, and soul — to a cause, duty, mission, or ideal larger and more important than a single life.”
A true oath isn’t bound by time or place. It has no escape clauses, no loopholes, no termination triggers. It can’t be transferred or traded. An oath imbues life with meaning and purpose, something a mere contract can never do.
The First Words, 1775
The first-ever oath sworn by soldiers in what would become the United States Army was, by that standard, barely an oath at all:
“I have, this day, voluntarily enlisted myself, as a soldier, in the American continental army, for one year, unless sooner discharged: And I do bind myself to conform, in all instances, to such rules and regulations, as are, or shall be, established for the government of the said Army.” (June 14, 1775)
This is a spoken contract. The swearer pledges to follow the rules for one year, no more, for this new thing called the Continental Army. There is no mention of a nation, a constitution, or a cause.
It sharpened the following year, once the fighting against Britain grew beyond a grievance into a War for Independence. On September 20, 1776, Congress approved language requiring soldiers to swear “to be true to the United States of America, and to serve them honestly and faithfully against all their enemies.” Note the phrasing: the United States, plural. A confederation of sovereign states, not yet the singular nation we think of today.
When the Constitution was ratified in 1789, contested and unpopular as it was, Congress made the oath peculiar among all nations. Officers in the new government swore not to a monarch, a leader, or a piece of land, but to a legal frame of government: “I do solemnly swear or affirm that I will support the constitution of the United States.” George Washington signed this into law on June 1, 1789.
How the Oath Changed
For decades after 1789, the oath carried a potential contradiction. Soldiers pledged allegiance to both “the Constitution of the United States” and “the United States of America” as if they were separate things. In the years before the Civil War, that ambiguity was not theoretical. What if the Constitution permitted the dissolution of the Union? What if loyalty to the nation required defying the Constitution?
The Civil War settled the matter. In July 1862, Congress revised the oath and removed any doubt. The Constitution and the United States of America were inseparable. Upholding one required upholding the other. And the phrase that every service member now recognizes entered the oath for the first time:
“…I will support and defend the Constitution of the United States against all enemies, foreign and domestic…” (July 2, 1862)
That language, foreign and domestic, has remained in the officer’s oath ever since, word for word, semicolon for semicolon.
The enlisted oath took a different path. When the draft arrived with World War I, Congress quietly removed the constitutional language. Draftees couldn’t be expected to swear freely to something they hadn’t chosen. The 1916 revision stripped the Constitution from the oath entirely, leaving only loyalty to the United States and obedience to superior officers.
It stayed that way through World War II and into Korea. Then came 1962.
Comparable Dignity
The Cold War and the Civil Rights Movement both elevated the Constitution to new prominence. In August 1962, the Senate Armed Forces Committee held hearings on a simple proposal: restore the Constitution to the enlisted oath, and add “So help me God” to both.
The testimony is worth reading. Homer Brett Jr. of the American Coalition of Patriotic Societies argued that enlisted men had historically been “customarily treated as inferior members of the political, economic, and social community” and therefore “not required to take any oath as complex as that which a free and highly educated citizen now takes to preserve a constitutional republic.” He rejected that framing entirely.
Admiral William Furlong agreed: “The soldiers in this country are just as good as the officers. This is a government of laws and not men, and we don’t want our soldiers required to bear allegiance to something different from the officers. It will give the enlisted personnel the same full sense of responsibility to their country for the defense of the Constitution.”
On October 5, 1962, Congress passed House Resolution 218. The Oath of Enlistment was revised to match the officer’s oath in its essential commitment. Enlisted personnel and officers now swear essentially the same thing. That has not changed since.
No Termination Date
Millions of men and women have sworn this oath in the decades since 1962. What they often notice, eventually, is that it contains no termination date. No time limit. No release clause. The commitment doesn’t end when the enlistment does, or when the commission ends, or when the uniform comes off.
That, DePastino argues, is what makes veterans distinct: “they’re people who have pledged themselves to something greater, and they carry that commitment wherever they go.”
On the 250th anniversary of the country that oath was first sworn to defend, that commitment is 250 years old. The oath has changed. The country has changed. The wars have changed. The commitment has not.
The Oath of Enlistment
“I do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; and that I will obey the orders of the President of the United States and the orders of the officers appointed over me, according to regulations and the Uniform Code of Military Justice. So help me God.”
The Oath of Commissioned Officers
“I do solemnly swear (or affirm) that I will support and defend the Constitution of the United States against all enemies, foreign and domestic; that I will bear true faith and allegiance to the same; that I take this obligation freely, without any mental reservation or purpose of evasion; and that I will well and faithfully discharge the duties of the office on which I am about to enter. So help me God.”
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- Veterans Breakfast Club (veteransbreakfastclub.org): original military history and veteran voices. The full DePastino article this piece is adapted from is at veteransbreakfastclub.org/the-oath-a-history. A companion piece on how the oath is taught at West Point is at veteransbreakfastclub.org/how-the-oath-is-taught-at-west-point.
- National Archives, 250th Anniversary of the U.S. Army exhibit (visit.archives.gov): original oath documents and founding-era military records on display through 2026.
- Veterans History Project, Library of Congress (loc.gov/vets): firsthand accounts from veterans of every era, including recordings of veterans discussing what the oath meant to them. Free, searchable, available to anyone.
- Military250 (military250.org): the national initiative honoring the 250th anniversaries of the U.S. Army, Navy, and Marine Corps, with civic engagement opportunities for veterans and military families.
- America250 Foundation (america250.org): national programming and events marking the 250th, including veteran and military family initiatives.
- White House Freedom 250 (whitehouse.gov/freedom250): the official federal initiative for the 250th, including veteran recognition programming and community events.
Sources: “The Oath: A History” by Todd DePastino, Veterans Breakfast Club (March 3, 2025); National Archives, oath of enlistment historical records; Congressional Record, House Resolution 218 (1962); Senate Armed Forces Committee hearings, August 1962. Selected content for MWI.
