U.S. Marines assigned to 1st Air Naval Gunfire Liaison Company, I Marine Expeditionary Force Information Group, I Marine Expeditionary Force, participate in a foot patrol during a brigade platoon field exercise on Marine Corps Base Camp Pendleton, California, April 7, 2020. The purpose of this exercise was for Marines to sustain and enhance basic warfighting skills such as land navigation, day and night patrolling, and long range communication capabilities. (U.S. Marine Corps photo by Sgt. Manuel A. Serrano)