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Tech. Sgt. Gabriel Ortiz, a 919th Special Operations Security Forces Squadron cadre member, instructs a fellow squadron member on the most efficient techniques for packing a ruck sack prior to the unit’s early morning ruck march at Duke Field, Fla., recently. The five-mile march fulfilled one segment of the squadron’ multi-phased Critical Individual Task training to occur over five monthly unit training assembly weekends. (U.S. Air Force photo/Capt. Monique Roux)