Video by Cpl. Jacob Yost Player Embed Code: Download Embed Share Steel Knight 22 1st Marine Division Dec. 20, 2021 | 0:39 U.S. Marines and Sailors with 1st Marine Division (1st MARDIV) and Expeditionary Strike Group 3, participate in Exercise Steel Knight 22 (SK-22) at Marine Corps Base Camp Pendleton, California, Dec. 3-16, 2021. SK-22 is a 1st MARDIV-led annual training exercise which enables the Navy-Marine Corps team to operate in a realistic, combined-arms environment and enhances naval warfighting tactics, techniques and procedures. (U.S. Marine Corps video by Cpl. Jacob Yost)