In 2004, the current silver Special Operations Diver Badge was approved for graduates of the Special Forces (SF) Underwater Operations (UWO) course. It includes a mask and mouthpiece, typical of a closed-circuit rebreather system; daggers honoring the legacy of Office of Strategic Services (OSS) swimmers; and sharks representing stealth, speed, and power.This badge was a long time coming. When SF began underwater operations in the 1950s, no scuba qualification badge existed. Starting in the early 1970s, SF shared a generic Scuba Badge with U.S. Army Engineer and U.S.