Petty Officer 1st Class Chris Johnson, a maritime enforcement specialist at U.S. Coast Guard Port Security Unit 312 (PSU 312) performs a room clearing drill with other members of the unit’s shoreside security team in Gladstone, Australia, July 25, 2023. PSU 312 is in Gladstone training with U.S. Coast Guard Maritime Safety and Security Team – San Francisco, and Australian law enforcement agencies to develop interagency training and partnerships. (U.S. Coast Guard courtesy photo).