Stunning footage shows US submarine breaking through Arctic ice
Watch as U.S. Navy submarine USS Hartford (SSN 768) surfaces in the Arctic Circle near Ice Camp Sargo on March 10th, 2016, during Ice Exercise (ICEX) 2016. Servicemembers and civilians assigned to Arctic Submarine Lab clear ice from the hatches to allow for surface access. ICEX is a five-week exercise designed to research, test, and evaluate operational capabilities in the region. (U.S. Navy video by Mass Communication Specialist 2nd Class Tyler Thompson and Staff Sgt. Edward Eagerton/Released). Credit to 'U.S. Navy'.