U.S. Navy submarine force sailors attend the 1,000th Trident Patrol Commemoration Ceremony. U.S. Navy submarine force sailors attend the 1,000th Trident Patrol Commemoration Ceremony at Naval Submarine Base Kings Bay, Ga., on Feb. 19, 2009. The ceremony marked the milestone of ballistic missile submarines conducting 1,000 successful patrol periods since the first patrol of the USS Ohio (SSBN 726) in 1982. SHARE: Download: Full Size (0.05 MB) Credit: VIRIN: 866751-I-NFJ43-717.jpg Photo Gallery