The Joint Support Ships currently being constructed for the Royal Canadian Navy will be purpose-built, multi-role vessels that will provide an important auxiliary function to the Royal Canadian Navy. One of the most important aspects of these vessels is their ability to replenish naval task groups with marine fuel and other provisions while at sea. This allows the Royal Canadian Navy to operate away from port for longer periods of time. In addition to replenishment at sea, the vessels will support training and naval manoeuvres and humanitarian operations, ensuring Canada’s continued safety and security at home and abroad.