What does the red piping on the enlisted dress blues signify?

The red piping on the enlisted dress blues signifies the heritage and traditions of the Marine Corps, particularly tied to the historical connection with John Paul Jones, who is often referred to as the "Father of the U.S. Navy." The red coat references the uniforms worn by Marines during the time of the American Revolution when they were initially a part of the Continental Navy. This red piping serves as a reminder of the Marine Corps' rich history, emphasizing honor and continuity from the past. It connects current Marines to their predecessors, fostering pride in their service and a sense of belonging to a legacy.