150203-N-TC437-198 PACIFIC OCEAN (Feb. 3, 2015) A rainbow forms over the bow of the Nimitz-class aircraft carrier USS John C. Stennis (CVN 74). John C. Stennis is undergoing an operational training period in preparation for future deployments. (U.S. Navy photo by Mass Communication Specialist 3rd Class Ignacio D. Perez/Released)