190910-N-NO842-0001 SAN DIEGO (Sept. 10, 2019) Vice Adm. John D. Alexander, left, commander of U.S. 3rd Fleet, speaks with Royal Australian Navy Lt. Ailie McCallum, right, Sub Lt. Zackary Ryan, center, and commanding officer Cmdr. Josh Wilson aboard the Perth-class guided-missile destroyer HMAS Brisbane (D 41), Sept. 10, 2019. The two nations maintain a robust relationship underpinned by shared democratic values and common interests. U.S. 3rd Fleet leads naval forces in the Indo-Pacific and provides the realistic, relevant training necessary for an effective global Navy. (Royal Australian Navy photo by Able Seaman Jack Sakonpoonpol/Released)