1:155th Infantry

The 1st Battalion, 155th Infantry Regiment (1-155th IN) is a unit of the Mississippi Army National Guard with a distinguished lineage dating back to 1798. Originally formed as part of the Mississippi Militia, the regiment has served in major conflicts including the Mexican-American War, Civil War, World Wars I and II, and more recently in Operation Iraqi Freedom. The 1-155th Infantry has earned numerous campaign streamers and honors for its service, demonstrating adaptability and valor across centuries. Today, the battalion continues its legacy as a key element of the 155th Armored Brigade Combat Team, providing trained and ready forces for both state and federal missions.