| rdfs:comment | - The quantity of ships in active service are categorized as follows:
* A/C carriers: Aircraft carriers are major vessels designed to carry aircraft and helicopters. Amphibious assault ships are not included.
* Major surface: Frigates, Destroyers and Cruisers of more than 1,000 tons displacement
* Minor surface: Patrol boats and attack craft of less than 1,000 tons displacement
* Submarines: All submarines
* Mine warfare: Ships with primary roles of minelaying, hunting, and sweeping
* Amphibious: Ships designed for landing troops and equipment and supporting amphibious operations
* Logistical: Transports, tenders, tankers, and other support vessels and service craft
* Other ships: Any ships not within the above groups
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| abstract | - The quantity of ships in active service are categorized as follows:
* A/C carriers: Aircraft carriers are major vessels designed to carry aircraft and helicopters. Amphibious assault ships are not included.
* Major surface: Frigates, Destroyers and Cruisers of more than 1,000 tons displacement
* Minor surface: Patrol boats and attack craft of less than 1,000 tons displacement
* Submarines: All submarines
* Mine warfare: Ships with primary roles of minelaying, hunting, and sweeping
* Amphibious: Ships designed for landing troops and equipment and supporting amphibious operations
* Logistical: Transports, tenders, tankers, and other support vessels and service craft
* Other ships: Any ships not within the above groups
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