Which of the following is the motto of the Marine Corps?

The motto of the Marine Corps is "Semper Fidelis," which is a Latin phrase meaning "Always Faithful." This motto encapsulates the commitment and loyalty expected from Marines, emphasizing fidelity to the mission, the Corps, and fellow Marines. It represents the unwavering dedication and reliability that are hallmarks of Marine service.

In contrast to the other options, "Fortes fortuna adiuvat," which translates to "Fortune favors the brave," is a general expression rather than an official military motto. "Paratus et fidelis," meaning "Prepared and Faithful," is not recognized as the Marine Corps motto and actually reflects attributes rather than a specific motto. "In hoc signo vinces," meaning "In this sign, you will conquer," is associated with the Christian faith and is not linked to the Marine Corps. Thus, "Semper Fidelis" stands out as the defining motto that fosters a sense of pride and cohesion among Marines.