APRA HARBOR, GUAM (Oct. 10, 2021) Engineman 3rd Class Kevin W. Matthews, from Anchorage, Alaska., checks the oil level on an 11-meter rigid-hulled inflatable boat in the mission bay of the Independence-variant littoral combat ship USS Jackson (LCS 6). Jackson, part of Destroyer Squadron Seven, is on a rotational deployment, is operating in the U.S. 7th fleet area of operations to enhance interoperability with partners and serve as a ready-response force in support of free and open Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Andrew Langholf)