U.S. Marine Corps 1st Lt. Ryan Oakes, the executive

U.S. Marine Corps 1st Lt. Ryan Oakes, the executive officer, Co. K, 3rd Battalion, 5th Marine Regiment, 1st Marine Division, gives a rehearsal of concepts brief while aboard the USS Portland (LPD 27) during exercise Steel Knight/Dawn Blitz (SK/DB) 21, off the shore of San Clemente Island, California, Dec. 4, 2020. SK/DB 21 affords 1st Marine Division and Expeditionary Strike Group (ESG) 3 the opportunity to showcase readiness within the education, planning, and execution continuum. (U.S. Marine Corps photo by Sgt. Miguel A. Rosales)