PEARL HARBOR, Hawaii (AP) - The U.S. Pacific Fleet's submarine force is getting a new commander.
Rear Adm. Phillip Sawyer will take over from Rear Adm. James Caldwell, Jr. during a ceremony at Pearl Harbor on Wednesday.
Sawyer was most recently based in Japan as the commander of Submarine Group 7, which operates in Asia and the Middle East.
Caldwell is leaving Hawaii for Washington to be the Navy's inspector general.
The Navy says Caldwell improved the way commanders and those in the field communicate to help the submarine force better respond to threats. He also improved coordination among submarine warfare commanders.
The U.S. Pacific Fleet's submarine force is responsible for 60% of the Navy's submarines. It's also responsible for the nation's ballistic missile submarine force in the Pacific.