170921-N-OY799-080 PHILIPPINE SEA (Sept. 21, 2017) Sailors take the Navy-wide E-4 advancement exam in the forecastle aboard the aircraft carrier USS Ronald Reagan (CVN 76). 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-Asia-Pacific region. (U.S. Navy photo by Mass Communication Specialist 2nd Class Kenneth Abbate/Released)