New video of submarine surfacing through ice. ARCTIC CIRCLE (March 10, 2016) USS Hartford (SSN 768) surfaces in the Arctic Circle near Ice Camp Sargo 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. LINKUSS Hartford (SSN 768) surfaces at the Arctic circle for ICEX 2016