When I started training as a Marine more than 50 years ago one of the first things we were taught was the call and response “Semper Fi” followed quickly by “Do or Die”. But to Marines, Semper Fi, Semper Fidelis—Always Faithful—is more than just a motto. It becomes a personal belief system, a statement of individual integrity and a way of life. Faithful to country, faithful to the Corps, faithful to fellow Marines, faithful to duty. It reflects your faith in the Marine Corps and your fellow Marines.
How did Marines come to adopt this distinctly non martial motto? Other more military sounding mottos and nicknames come to mind: “Devil Dogs”, “First to Fight”, and “Leathernecks”. But Semper Fidelis has become the way Marines see themselves, so much so that their greeting to one another is “Semper Fi”. The same ethos is embodied in an unofficial Marine Corps motto, “No Man Left Behind”.
But what is the origin of this motto that seems to sum up the entire philosophy of the Marine Corps?
The United States Marine Corps is known for its discipline, dedication, and fierce loyalty, qualities that are symbolized by Semper Fidelis. Translated from Latin, the phrase means “Always Faithful.” But like many traditions within the military, the motto is rooted in a rich history that stretches back hundreds of years.
The Marine Corps was established in 1775 as the Continental Marines, but the famous motto did not appear until more than a century later. By the early 19th century, several mottos had been associated with the Marines, including “Fortitudine” (With Fortitude) and “By Sea and by Land.” While these phrases captured elements of the Marines’ mission, they lacked the enduring emotional impact that would ultimately come with Semper Fidelis.
It was in 1883 that the motto was formally adopted under the leadership of the 8th Commandant, Colonel Charles McCawley. Colonel McCawley likely chose that motto because it embodies the values of loyalty, faithfulness and dedication that he believed should define every Marine. Unfortunately, we will never know his exact reason for choosing this specific motto because he did not leave any documentation about his thought process. Regardless, from that point on, the motto became inseparable from the identity of the Corps.
The phrase “Semper Fidelis” has much older origins than its Marine Corps adoption. It’s believed to have originated from phrases used by senators in ancient Rome, with the earliest recorded use as a motto dating back to the French town of Abbeville in 1369. The phrase has been used by various European families since the 16th century, and possibly as early as the 13th century.
The earliest recorded military use was by the Duke of Beaufort’s Regiment of Foot, raised in southwestern England in 1685. The motto also has connections to Irish, Scottish, and English nobility, as well as 17th-century European military units, some of whose members may have emigrated to American colonies in the 1690s
The choice of the Latin phrase by Colonel McCawley was likely deliberate. Latin carries with it a sense of permanence and tradition, and its concise wording communicated volumes in only two words. “Always Faithful” perfectly captured the bond that must exist between Marines and the responsibilities they shoulder. Marines are expected to remain faithful to the mission, to their comrades in arms, and to the United States, regardless of the personal cost. It is this idea of unshakable fidelity that has come to define what it means to wear the Eagle, Globe, and Anchor.
Since its adoption, Semper Fidelis has carried Marines through every conflict the United States has faced. From the battlefields of World War I, where Marines earned the name “Devil Dogs,” to the grueling island campaigns of the Pacific in World War II, to the frozen battle fields of Korea, to the steaming jungles of Vietnam, Marines have demonstrated again and again what it means to be “Always Faithful.” In modern times, whether in Iraq, Afghanistan, or in humanitarian missions across the globe, this motto continues to serve as a reminder of the Corps’ unwavering commitment.
The phrase has also influenced the broader culture of the Marines, inspiring the title of the official Marine Corps march, “Semper Fidelis,” composed by John Philip Sousa in 1888, which remains a powerful symbol of pride and esprit de corps.
The motto’s meaning extends beyond active service. Marines pride themselves on being “once a Marine, always a Marine,” and Semper Fidelis reflects that lifelong bond. Even after leaving the uniform behind, Marines carry that sense of loyalty into civilian life, honoring the values and traditions of their service. For many, it becomes a central guiding principle throughout their lives. Marine veterans always say “I was a Marine”.
In the end, the motto “Semper Fidelis” is far more than a catchy phrase. It is both a promise and a challenge—a pledge of unwavering loyalty and a challenge to live up to the highest standards of duty, honor, and fidelity. When Marines declare “Semper Fi,” they acknowledge not only their devotion to the Marine Corps, but also the unbreakable loyalty that binds them together as brothers and sisters in arms.
The celebration of the 250th anniversary of the signing of the Declaration of Independence is coming up next year on July 4th. But what about the events leading up to this? What about the men and women who helped make this happen? There are events coming up to commemorate the 250th anniversary of the founding of the Continental Navy and the Continental Marines in 1775. We will be holding commemorative celebrations here in West Virginia and there will be a national event in Philadelphia in October of this year.