OSAN AIR BASE, Republic of Korea -- 25th Fighter Generation Squadron crew chiefs relocated A-10C Thunderbolt IIs from the flightline into hangars during an FGS training event at Osan Air Base, Republic of Korea, Dec. 15, 2022. Airmen quickly moved aircraft into hangars due to sudden adverse weather conditions during the training event. Adverse weather challenges aircrews and support staff, who must be prepared to generate aircraft at a moment’s notice for mission readiness in all conditions.