14. 1st Marine Division (The Old Breed)
The 1st Marine Division, known as “The Old Breed,” is the oldest, largest, and most decorated division in the United States Marine Corps. Activated on February 1, 1941, aboard the battleship USS Texas, the division has a storied history spanning major conflicts, including World War II, the Korean War, the Vietnam War, and more. (1stmardiv.marines.mil) Its iconic blue diamond insignia symbolizes its enduring legacy and commitment to excellence.
