RED SEA (Oct. 25, 2021) Royal Saudi Naval forces assigned to Saudi frigate Al Riyadh (812), participate in a visit, board, search, and seizure (VBSS) drill with the guided-missile destroyer USS O'Kane (DDG 77) as part of joint exercise Indigo Defender. Indigo Defender 21 is a capstone bilateral maritime exercise between Royal Saudi Naval Forces and U.S. Naval Forces Central Command to enhance interoperability and strengthen our capacity to maintain regional maritime security and stability. (U.S. Navy photo by Mass Communication Specialist Seaman Elisha Smith)