Marine Sgt. Daniel Bronza, with the tactical response

Marine Sgt. Daniel Bronza, with the tactical response platoon of the Chemical, Biological Incident Response Force from Indian Head, Md., observes Marines from the response force brace a building for safe entry at Mascatatuck Urban Training Complex, Ind., July 30. “My job as the OC is to make sure that they are performing operations safely as well as critique and possibly take back information to decide what training they may need to hit a little harder,” said Bronza. The response force is participating in Vibrant Response 13, a major field training exercise conducted by U.S. Northern Command and led by U.S. Army North.