Sailors aboard USS Ticonderoga (CVA-14) conduct underway replenishment during a Vietnam War deployment, receiving supplies from a support ship alongside at sea. UNREP operations like this one allowed carrier battle groups to remain on station for extended combat cruises without returning to port, transferring ammunition, food, fuel, and equipment via cables and highlines strung between moving ships -- a routine but demanding evolution central to sustained naval air operations off the coast of Vietnam. Project: 218064