U.S. Marine Corps 1st Lt. Juan Rangel with Sierra

U.S. Marine Corps 1st Lt. Juan Rangel with Sierra Battery, 3rd Battalion, 12th Marine Regiment, gives a capabilities brief to Royal Thai Armed Forces Soldiers about the M142 High Mobility Artillery Rocket System (HIMARS) during exercise Cobra Gold 19 at Sukhothai, Kingdom of Thailand, Feb. 14, 2019. Cobra Gold is one of the largest theater security cooperation exercises in the Indo-Pacific and is an integral part of the U.S. commitment to strengthen engagement in the region. Cobra Gold 19, the 38th interation of this exercise, emphasizes coordination on civic action, such as humanitarian assistance and disaster relief, seeking to expand regional cooperation and collaboration in these vital areas. (U.S. Marine Corps photo by Sgt. Kyle C. Talbot)