A Sea Service Ribbon is an award of the United States Navy, U.S. Marine Corps, U.S. Coast Guard, the U.S. Army, and the NOAA Commissioned Officer Corps which recognizes those service members who have performed military duty while stationed on a United States Navy, Coast Guard, Army, or NOAA vessel at sea and/or members of the Navy, Marine Corps or Coast Guard who have been forward-deployed with their home unit. Wikipedia