US Navy 040226-N-2383B-137 Adm. Vern Clark, Chief of Naval Operations (CNO), seated right, and Vice Adm. Chris Ritchie, Chief of Navy, Royal Australian Navy, sign a statement of principles

Adm. Vern Clark, Chief of Naval Operations (CNO), seated right, and Vice Adm. Chris Ritchie, Chief of Navy, Royal Australian Navy, sign a statement of principles for enhanced cooperation between the U.S. Navy and Royal Australian Navy on matters relating to maritime surface warfare capability. U.S. Navy photo by Chief Photographer's Mate Johnny Bivera.