191216-N-PC620-0098 RED SEA (Dec. 16, 2019) Damage Controlman 3rd Class Ivy Stockman, acting as gas-free engineer, takes an atmospheric reading with a six-gas analyzer as part of a simulated toxic gas leak during an at-sea fire party drill aboard the guided-missile cruiser USS Normandy (CG 60). Normandy is part of the Harry S. Truman Carrier Strike Group and is operating in the U.S. 5th Fleet area of operations in support of naval operations to ensure maritime stability and security in the Central Region, connecting the Mediterranean and Pacific through the western Indian Ocean and three strategic choke points. (U.S. Navy photo by Mass Communication Specialist 2nd Class Michael H. Lehman/Released)