At Sea (NNS) -- Crew members aboard USS Bonhomme Richard (LHD 6) donned gas masks and chemical protection suits to treat mock mass casualties during a series of chemical, biological and radiological (CBR) defense drills recently. The drills are consistent with the normal basic-phase training routine ships go through to prepare for deployment, but according to ship Operations Officer Cmdr. Paul Shock, Bonhomme Richard is going through the training a lot sooner than most. "Normally, (ships) would start this training three months after a PMA (planned maintenance availability), and it would last about five months,” said Shock. In order to achieve these goals…