ATLANTIC OCEAN (June 21, 2021) Aviation Boatswain's Mate (Fuel) 3rd Class Brandon Gemmill, from Clarkdale, Arizona, monitors fuel tank levels during a replenishment-at-sea in a JP-5 pump room aboard the Nimitz-class aircraft carrier USS Harry S. Truman (CVN 75) during Tailored Ship’s Training Availability (TSTA) and Final Evaluation Problem (FEP). Harry S. Truman, with embarked Carrier Air Wing 1, is underway conducting TSTA and FEP to assess their ability to conduct combat missions, support functions and survive complex casualty control situations in preparation for full integration into a carrier strike group. (U.S. Navy photo by Mass Communication Specialist Seaman Tyler Cardoza)