Auxiliary ship

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An auxiliary ship is a naval ship designed to support combatant ships and other naval operations.^[1] Auxiliary ships are not primary combatant vessels, though they may have some limited combat capacity, usually for purposes of self-defense.^{[2] [3]}

Auxiliary ships are extremely important for navies of all sizes because if they were not present the primary fleet vessels would be unsupported. Thus, virtually every navy maintains an extensive fleet of auxiliary ships, however, the composition and size of these auxiliary fleets vary depending on the nature of each navy and its primary mission. Smaller coastal navies tend to have smaller auxiliary vessels focusing primarily on littoral and training support roles, while larger blue-water navies tend to have larger auxiliary fleets comprising longer-range fleet support vessels designed to provide support far beyond territorial waters.^[4]