CAST OFF U.S. Navy Petty Officer 2nd Class Joshua Thomas casts a mooring line to sailors aboard the guided-missile destroyer USS O'Kane as it departs Joint Base Pearl Harbor-Hickam, Hawaii, March 23, 2012. O'Kane is deploying under the Middle Pacific Surface Combatant deployment concept, in which Pearl Harbor-based ships deploy in support of operations primarily in the western Pacific region. SHARE: Download: Full Size (0.07 MB) Credit: VIRIN: 878765-M-KAY03-232.jpg Photo Gallery