U.S. Marines with 4th Air Naval Gunfire Liaison Company, Marine Forces Reserve, in support of Special Purpose Marine Air-Ground Task Force UNITAS LXIII, radio in an emergency casualty evacuation during a simulated casualty evacuation as part of exercise UNITAS LXIII, Santa Cruz Air Force Base, Rio de Janeiro, Sept. 7, 2022. 4th ANGLICO and the Brazilian Marine Corps tested the capability of transporting wounded marines by Brazilian military medical units. UNITAS trains forces to conduct joint maritime operations through the execution of anti-surface, anti-submarine, anti-air, amphibious and electronic warfare operations that enhance warfighting proficiency and increase interoperability among participating naval and marine forces. (U.S. Marine Corps photo by Cpl. Colton K. Garrett)