ATLANTIC OCEAN (June 1, 2022) Sailors fire a Mark 38-25mm machine gun system aboard the Nimitz-class aircraft carrier USS George H.W. Bush (CVN 77), June 1, 2022. The George H.W. Bush Carrier Strike Group is underway completing a certification exercise to increase U.S. and allied interoperability and warfighting capability before a future deployment. The GHWBCSG is an integrated combat weapons system that delivers superior combat capability to deter, and if necessary, defeat America's adversaries in support of national security. (U.S. Navy photo by Mass Communication Specialist Seaman Jacob West)