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Template:POTD/2011-07-19

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USS Annapolis during Ice Exercise 2009
USS Annapolis, resting in the Arctic Ocean after surfacing through three feet of ice during Ice Exercise 2009 in March 2009. The two-week training exercise was used to test submarine operability and war-fighting capability in Arctic conditions, and also involved the USS Helena, the University of Washington and personnel from the Navy Arctic Submarine Laboratory.Photo: Petty Officer 1st Class Tiffini M. Jones, U.S. Navy