The U.S. Secret Service marked Marine Infantry Day on March 11, 2026, by acknowledging the contributions of former Marine infantrymen within its ranks and encouraging others to consider a career with the agency.
In a post made at 11:30 a.m. UTC, the Secret Service stated, "03/11! Today we celebrate the Marine infantrymen who brought their discipline and dedication to our mission, including Marines like Officer Ruben. If you are an 0311 separating from the @USMC, you can continue your Service to the Nation with us. Start your Secret Service career https://t.co/JWUm9xB5QI".
Later that morning at 12:12 p.m. UTC, another message was shared: "Happy Marine Infantry Day! The Secret Service proudly celebrates the 0311s within our ranks who continue their service to the country, including Michael, pictured here during his time in the infantry. If you are an 0311 separating from the @USMC, you can continue to serve with https://t.co/x8awSuVzBX".
At 12:44 p.m. UTC, a third post read: "Happy Marine Infantry Day! The Secret Service proudly honors the Marines within our ranks like Special Agent Jason, who carried their infantry standard into a new mission. If you are a Marine infantryman separating from the @USMC, you can continue to serve the country with us. https://t.co/eUSCvX3vNV".
Marine Infantry Day recognizes those who have served as infantrymen in the United States Marine Corps under Military Occupational Specialty (MOS) code "0311." The U.S. Secret Service has a history of recruiting veterans for roles within its organization due to their training and experience in security and protection operations.
