Col. Erik Goepner, 11th Security Forces Group commander, far left, gives 11th SFG Airmen remarks before leading them on a 9/11 Memorial Ruck March Sept. 11, 2012. The march lasted more than three hours and was held in remembrance of the Americans who lost their lives in the 9/11 terrorist attacks eleven years prior. (U.S. Air Force photo/Senior Airman Lindsey A. Porter)