BAY OF BENGAL (Oct. 17, 2021) The Royal Navy aircraft carrier HMAS Queen Elizabeth (R O8), the Nimitz-class aircraft carrier USS Carl Vinson (CVN 70), and the Japan Maritime Self-Defense Force Izumo-class helicopter destroyer JS Kaga (DDH 184), front, sail together as part of Maritime Partnership Exercise (MPX) 2021, Oct. 17, 2021. MPX 2021 is a multilateral maritime exercise between the Royal Australian Navy, Japan Maritime Self-Defense Force, the Royal Navy and U.S. maritime forces, focused on naval cooperation, interoperability and regional security and stability in the Indo-Pacific and is an example of the enduring partnership between Australian, Japanese, U.K. and U.S. maritime forces who, who routinely operate together in the Indo-Pacific, fostering a cooperative approach toward regional security and stability. (U.S. Navy photo by Mass Communication Specialist 3rd Class Erin C. Zorich)