190909-N-UB406-0173 ATLANTIC OCEAN (Sept. 9, 2019) Chief Sonar Technician (Surface) Benjamin Landholt observes a Mark 32 Mod 15 surface vessel torpedo tube fire an air slug aboard the guided-missile destroyer USS Gridley (DDG 101). Gridley is underway on a regularly-scheduled deployment as the flagship of Standing NATO Maritime Group 1 to conduct maritime operations and provide a continuous maritime capability for NATO in the northern Atlantic. (U.S. Navy photo by Mass Communication Specialist 2nd Class Cameron Stoner/Released)