190903-N-NL576-381 ADAK, Alaska (Sept. 3, 2019) Navy Diver 1st Class Jack Dalziel, assigned to Mobile Diving and Salvage Unit One (MDSU 1), dismantles the hull of the F/V Heritage, an abandoned vessel that had been blocking access to a boat ramp on Adak Island in Alaska's Aleutian chain. MDSU 1 is on Adak in support of Arctic Expeditionary Capabilities Exercise 2019 and is the U.S. Navy's premier diving and salvage force that is prepared to rapidly deploy combat-ready, expeditionary warfare capable, specialized dive teams to conduct harbor and waterway clearance, emergent underwater repairs and salvage operations in all environments. (U.S. Navy photo by Senior Chief Mass Communication Specialist Brandon Raile/Released)