The USNS Walter S. Diehl (T-AO 193) conducts a replenishment at sea operation with the USS Antietam (CG 54). The USNS Walter S. Diehl (T-AO 193) conducts a replenishment at sea operation with the USS Antietam (CG 54) on May 6, 2005. The Antietam is conducting maritime security operations in the North Arabian Gulf. Maritime security operations set the conditions for security and stability in the maritime environment. SHARE IMAGE: Download Image: Full Size (0.08 MB) Photo By: VIRIN: 946927-G-SVJ98-156.jpg Photo Gallery