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July 2019: The U.S. Navy recently validated the identity of a submarine shipwreck that was discovered in 2017 after being missing for nearly 75 years. 
September 2017: Discovery of the USS S-28 off of Honolulu Hawaii in 8700m of water
September 2014: Discovery of the USS S-26 in Pacific Panama
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October 2010: Discovery of the USS R-12 in 600 feet of water off of Key West, Florida.
August 2019: The bow of WWII Submarine USS Grunion (SS-216) has been discovered in 2700 feet of water off the Aleutian Islands, Alaska by a team pioneering robotic ocean exploration.
November 11th, 2019: The WWII Submarine USS Grayback (SS-208) has been discovered in 1427 feet of water off the Japanese Island of Okinawa by a team pioneering robotic ocean exploration.
March 10th, 2020: The WWII - Cold War Submarine USS Stickleback( SS-415) has been discovered in 11000 feet of water off the Hawaiian Island of Oahu by a Lost 52 team.
Tim Taylor awarded the Navy Distinguished Public Service Medal. The US Navy’s highest civilian honor” in recognition of exploration, discoveries, and service to the Department of the Navy honoring the Sailors and Marines that gave their lives in service to the nation. 
Discovery of WWII Submarine “Hit ’Em Harder”  
USS Harder and crew gravesite 

This is one of the most famous submarines of World War II, awarded the Presidential Unit Citation for her successful six war patrols. Commanded by Medal of Honor recipient, Commander Samuel D. Dealey (1906–1944)