U.S. Army Specialist Scott Morrison, 23, of Blue Ash, Ohio, bravely served with the 584th Mobility Augmentation Company, 20th Engineer Battalion, 36th Engineer Brigade, stationed at Fort Hood, Texas. On September 26, 2010, he tragically lost his life due to injuries sustained from an insurgent attack in Kandahar, Afghanistan, involving an improvised explosive device a day earlier. We honor his service and remember his sacrifice through this workout. Specialist Morrison is survived by his father Donald, mother Susan, brother Gary, and sister Katie.

The "21 Guns" WOD is a functional fitness tribute workout designed for the "WOD With Warriors" event, which takes place twice a year on Veterans Day and Memorial Day in the United States. The purpose of this workout is to honor and pay tribute to the nation's warriors, past, present, and future.

The workout's structure and repetitions symbolize a 21-gun salute, a traditional military honor rendered at funerals and memorial services. Each exercise represents one of the five branches of the military. The 21-minute duration of the workout is also significant, as it represents the 21-gun salute, the highest display of honor in the United States, reserved for fallen troops on Memorial Day.