Senior Chief Petty Officer Kevin Ball conducts an interview with a reporter from KPIX about the Seattle-based Coast Guard Cutter Polar Star’s recent Antarctic deployment while the cutter undergoes depot-level maintenance in a dry dock facility in Vallejo, Calif., April 16, 2018. Polar Star's operations and presence in Antarctica promote security and stability across the polar regions where more than a dozen nations have a presence including Russia and China. U.S. Coast Guard photo by Petty Officer 1st Class Matthew S. Masaschi.