U.S. Marines and U.S. Navy Sailors participate in the

U.S. Marines and U.S. Navy Sailors participate in the 26th Annual Commanding General’s Cup Mud Run at Lake O’Neill, Marine Corps Base Camp Pendleton, California, June 7, 2019. Marines and Sailors ran in groups of five or less to compete in the annual event which was approximately 6 miles and included various obstacles and stations along the way. (Photo by Ismael Pena)