U.S. Marine 1st Lt. Daniel Avera, an air traffic control

U.S. Marine 1st Lt. Daniel Avera, an air traffic control officer, secures a panel that will notify an aircraft where to land on Iejima Island, Okinawa, Japan, December 14, 2017. Marines with Marine Air Control Squadron 4, Marine Air Control Group 18, 1st Marine Aircraft Wing, traveled to Iejima Island to be formally evaluated on their Marine Corps Air Traffic Control Mobile Team Mission Essential Tasks as part of the Marine Corps Combat Readiness Evaluation for exercise Voodoo Magic from December 4-15, 2017. This is the first time MACS-4 has conducted this evaluation. Avera, a native of San Francisco, is attached to MACS-4, MACG-18, 1st MAW. (U.S. Marine Corps photo by Lance Cpl. Alexia Lythos)