APRA HARBOR, Guam (Jan. 10, 2022) Hospital Corpsman 1st Class Mary Ashcraft, from Honolulu, assigned to the Independence-variant littoral combat ship USS Tulsa (LCS 16), administers the COVID-19 vaccine booster for Aviation Electronics Technician 2nd Class Nicolas Cardiel, from Parker, Colorado, assigned to the "Blackjacks" of Helicopter Sea Combat Squadron (HSC) 21, aboard the submarine tender USS Emory S. Land (AS 39). Tulsa, part of Destroyer Squadron (DESRON) 7, is on a rotational deployment, 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 a free and open Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 1st Class Devin M. Langer)