List of active Royal Danish Navy ships  This is a list of the active vessels of the Royal Danish Navy. MCM Denmark is a container based mine countermeasures concept, which can be deployed on "Absalon"-, "Thetis"-, "Sea Supply"-, "Knud Rasmussen"- class, "HDMS Sleipner", chartered ships with container positions or ordinary trucks. Plus a variety of RHIBs, smaller vessels as well as several Ro/Ro-vessels on a permanent charter. Though not a part of the Royal Danish Navy, Naval Home Guard vessels support the Danish Navy in a number of tasks.