Is an American LHA the equivalent of a Space Marine battle barge?
Short answerThe fictional battle barge has far greater protection, firepower and aviation capacity, along with orbital bombardment capability that an LHA lacks.
NotesCarrying assault forces gives an LHA a superficial resemblance to a Space Marine battle barge, but the fictional vessel has very different protection, firepower and aviation capacity. An LHA also lacks orbital bombardment capability. Railgun-refitted Ford-class carriers and large troop transports are jokingly offered as ingredients for a closer comparison. That suggestion remains a fictional comparison rather than a developed real design proposal.