The U.S. Secret Service used its official Twitter account on March 11, 2026, to recognize Marine Infantry Day and highlight former U.S. Marine Corps infantry members—known as "0311s"—who have transitioned into roles within the agency.
In a post published at 15:00 UTC, the Secret Service stated, "Happy Marine Infantry Day! The Secret Service proudly celebrates the 0311s within our ranks who continue their service to the country, including Secret Service Uniformed Division Officer Stephen, pictured here in Afghanistan."
Later that day at 15:40 UTC, the agency reiterated its recognition with another post: "03/11 - Happy Marine Infantry Day! The Secret Service proudly honors the 0311s within our ranks who carried their infantry standard into a new mission. Meet Special Agent Peter, who went from Marine infantryman to Special Agent of the Year!"
A subsequent tweet at 17:02 UTC featured a family connection among former Marines now serving as agents: "Happy Marine Infantry Day! Service is a calling, and for Special Agent Ryan and his son Special Agent Brady, that calling took them both from the infantry to the Secret Service!"
Marine Infantry Day is an annual occasion marked by various organizations and military branches to honor current and former U.S. Marine Corps infantry personnel. The designation "0311" refers specifically to enlisted riflemen in the Marines' Military Occupational Specialty (MOS) system.
The U.S. Secret Service has frequently acknowledged veterans within its workforce and encourages separating service members—including those from specialized backgrounds such as Marine infantry—to consider careers in federal law enforcement.
