KEFLAVIK, Iceland (April 4, 2022) Construction Mechanic 2nd Class Kendra Rauch of Underwater Construction Team One Construction Dive Detachment Bravo, based out of Joint Expeditionary Base Little Creek, Va., explains hyperbaric chamber capabilities to Maj. Gen. Francis Donovan, Commander, Task Force 61/2, during Exercise Northern Viking 22, April 4, 2022. Northern Viking 22 strengthens interoperability and force readiness between the U.S., Iceland and Allied nations, enabling multi-domain command and control of joint and coalition forces in the defense of Iceland and Sea Lines of Communication in the Greenland, Iceland, United Kingdom (GIUK) gap. (U.S. Navy photo by Equipment Operator 2nd Class Devon Maher)