Overhead Reaction Sailors on the USS Oscar Austin participate in a security reaction course in the Black Sea, May 9, 2017. The Austin is supporting U.S. national security interests in Europe, and increasing theater security cooperation and forward naval presence in the U.S. 6th Fleet area of operations. Navy photo by Petty Officer 1st Class Sean Spratt SHARE: Download: Full Size (1.38 MB) Credit: Petty Officer 1st Class Sean Spratt VIRIN: 170509-N-AX546-110C.JPG Photo Gallery