Royal Australian Air Force Leading Aircraftwoman Terri-Anne Dehncke, holds a light for Royal Australian Air Force Flt. Lt. Deirdre Ryan, a dentist, as she extracts a tooth during a dental civic action program at Malaguna Technical High School. Both are embarked aboard the Royal Australian Navy landing ship heavy HMAS Tobruk. A contingent of 64 Sailors and non-governmental organization members assigned to the Military Sealift Command hospital ship USNS Mercy are embarked aboard Tobruk conducting the final leg of Pacific Partnership 2010. Pacific Partnership is the fifth in a series of annual U.S. Pacific Fleet humanitarian and civic assistance endeavors aimed to strengthen regional partnerships.