Pacific Partnership is an annual deployment of forces from the Pacific Fleet of the United States Navy (USN), in cooperation with regional governments and military forces, along with humanitarian and non-government organizations.The deployment was conceived following the 2004 Indian Ocean earthquake and tsunami, as a way to improve the interoperability of the region's military forces, governments, and humanitarian organisations during disaster relief operations, while providing humanitarian, medical, dental, and engineering assistance to nations of the Pacific, and strengthening relationships and security ties between the nations.The deployment is typically based around an amphibious warfare vessel or hospital ship of the USN's Pacific Fleet.