U.S. Air Force Tech. Sgt. John Nazario (left), 302d Aeromedical Staging Squadron medical technician, and Capt. Samuel Hendricks, 944th Aeromedical Staging Squadron critical nurse, assist an El Salvador Primera Brigada Aérea member with applying a seal to a sucking chest wound to a medical training mannequin in Ilopango, El Salvador, June 20, 2025. The training was part of the AMISTAD campaign, a mission designed to promote cooperation between U.S. and host nation medical professions training in resource-constrained environments. (U.S. Air Force photo by Tech. Sgt. Justin Norton)