Remembering the bravery of three remarkable #SpecialTactics Airmen who made the ultimate sacrifice during #OperationEnduringFreedom on this day in 2011. TSgt Daniel Zerbe, TSgt John Brown, and SSgt Andrew Harvell lost their lives while on a nighttime rescue mission in Afghanistan after their helicopter was shot down. Today, we honor their courage and dedication, as they will forever remain in our hearts. #KIA #HeroesInService"