171229-N-SK327-1053 ARABIAN GULF (Dec. 29, 2017) Chief of Naval Operations (CNO) Adm. John Richardson, right, speaks with Gas Turbine Systems Electrician Thomas Marvelle, top, and Lt. Cmdr. Scott Knuttson, left, during a visit aboard the guided-missile cruiser USS Bunker Hill (CG 52). Bunker Hill is deployed with the Theodore Roosevelt Carrier Strike Group to the U.S. 5th Fleet area of operations in support of maritime security operations to reassure allies and partners and preserve the freedom of navigation and the free flow of commerce in the region. (U.S. Navy photo by Mass Communication Specialist 3rd Class Rachael Treon/Released)