Veteran Cpl Josue Barron of Cudahy, CA, maneuvers around the defense of Cpl Marcus Chischilly of Phoenix, AZ in the wheelchair basketball competition. The Marine Corps Trials are a Paralympic style competition in which wounded, ill, and injured Marines, Marine Veterans, and international allies compete in archery, cycling, field, shooting, sitting volleyball, swimming, track, and wheelchair basketball. The 2014 Marine Corps Trials are held aboard Camp Pendleton, Calif. from March 4-12. - Veteran Cpl Josue Barron of Cudahy, CA, maneuvers around the defense of Cpl Marcus Chischilly of Phoenix, AZ in the wheelchair basketball competition. The Marine Corps Trials are a Paralympic style competition in which wounded, ill, and injured Marines, Marine Veterans, and international allies compete in archery, cycling, field, shooting, sitting volleyball, swimming, track, and wheelchair basketball. The 2014 Marine Corps Trials are held aboard Camp Pendleton, Calif. from March 4-12.