U.S. Marines go aboard the HMAS Adelaide at Port of Brisbane, Queensland, Australia, June 16, 2016. This marks the first time Marines and sailors from Marine Rotational Force - Darwin have embarked in such numbers on an Australian HMAS. This opportunity allows for MRF-D to expand the partnership capabilities with our Australian allies. The Marines are with 1st Battalion, 1st Marine Regiment, MRF-D, and the Australians are with HMAS Adelaide. - U.S. Marines go aboard the HMAS Adelaide at Port of Brisbane, Queensland, Australia, June 16, 2016. This marks the first time Marines and sailors from Marine Rotational Force - Darwin have embarked in such numbers on an Australian HMAS. This opportunity allows for MRF-D to expand the partnership capabilities with our Australian allies. The Marines are with 1st Battalion, 1st Marine Regiment, MRF-D, and the Australians are with HMAS Adelaide.