181118-N-GC639-1048 PHILIPPINE SEA (Nov. 17, 2018) The Arleigh Burke-class guided-missile destroyer USS Spruance (DDG 111), foreground, fires its Mark 45 5-inch gun while in formation behind the Nimitz-class aircraft carrier USS John C. Stennis (CVN 74) during a live-fire evolution. John C. Stennis and Spruance are underway and conducting operations in international waters as part of a dual carrier strike force exercise. The U.S. Navy has patrolled the Indo-Pacific region routinely for more than 70 years promoting regional security, stability and prosperity. (U.S. Navy photo by Mass Communication Specialist 2nd Class Ryan D. McLearnon/Released)