The Army Sea Duty Ribbon was created in 2006 and is awarded to those members of the Active United States Army, United States Army Reserve, and Army National Guard for completion of sea duty on Class A or B United States Army Vessel. To be awarded the ribbon, Active Duty members must complete two years of cumulative sea duty aboard Class A or B vessels. For Members of the Army Reserve, and National Guard, soldiers must have two creditable years in a U.S. Army Watercraft unit. In addition to being assigned to a qualifying unit, reserve component soldiers must spend at least 25 days during each of the qualifying years underway, along with two annual training exercises on a Class A or B vessel. A ninety day deployment on board a class A or B vessel also qualifies. For mobilized National Guard, and Army Reserve soldiers, one year of active duty is creditable for the 2 year requirement, as long as the minimum underway requirement is met.