A group of Airmen led by Sean Quinby, 4th Civil Engineer Squadron fire chief, participate in a final march with the 9/11 Remembrance Flag on the two-mile track at Seymour Johnson Air Force Base, N.C., Sept. 12, 2013. Members of the 4th CES set a goal of 343 miles, which is equivalent to the number of firefighters killed in the line-of-duty during the 9/11 attacks. Team Seymour bested the goal by more than 1,000 miles. (U.S. Air Force photo by Airman 1st Class Brittain Crolley)