180512-N-OY799-0345 WATERS SOUTH OF JAPAN (May 12, 2018) Damage Controlman 1st Class Sharese Grey tests a sample from a sprinkler during an aqueous film form foam countermeasure washdown on the flight deck of the aircraft carrier USS Ronald Reagan (CVN 76) during sea trials. Ronald Reagan is the flagship of Carrier Strike Group 5, providing a combat-ready force that protects and defends the collective maritime interests of its allies and partners in the Indo-Pacific region. (U.S. Navy photo by Mass Communication Specialist 2nd Class Kenneth Abbate/Released)