CrossFitters throughout the nation, including at Romeo Athletics in Enfield, Conn., gathered this Memorial Day weekend to complete a workout in honor of U.S. Navy Lt. Michael P. Murphy, who was killed in action in 2005.

Murphy died on June 28, 2005, during a reconnaissance mission to find a key Taliban leader in Afghanistan. When his team came under fire, Murphy knowingly left his position of cover to get a clear signal to communicate with his headquarters, according to the U.S. Navy. He died fighting, the Navy said.

The “Murph” workout was one of Murphy’s favorites, according to CrossFit, and it was named in his honor. It consists of a 1-mile run, followed by 100 pull-ups, 200 push-ups, and 300 air squats, and then another 1-mile run...completed while wearing a 20-pound weight vest or body armor.

The workout has become a tradition for CrossFitters and Navy SEALs, completed each Memorial Day weekend as a way to honor the memory of Murphy and the countless other soldiers who have died protecting the United States.