180310-N-LY160-600 BEAUFORT SEA (March 10, 2018) A Sailor assigned to the Los Angeles-class fast-attack submarine USS Hartford (SSN 768) mans the sail after the boat surfaces through the ice cover March 10, 2018 in support of Ice Exercise (ICEX) 2018. ICEX 2018 is a five-week exercise that allows the Navy to assess its operational readiness in the Arctic, increase experience in the region, advance understanding of the Arctic environment, and continue to develop relationships with other services, allies and partner organizations. (U.S. Navy photo by Mass Communication 2nd Class Micheal H. Lee/Released)