How many carriers major fleets could surge

How many carriers could the major fleets deploy if every available force sailed together?

The United States might supply about six, Britain one with US aircraft support, China and Italy one each, while several other fleets lacked a ready fixed-wing carrier.

The answer surveys Britain, the United States, China, France, Italy, Spain, Australia, Russia, Turkey, Thailand, and Japan. Amphibious ships without embarked fixed-wing aircraft do not automatically become operational carriers. Maintenance state, trained air groups, and access to compatible F-35Bs sharply reduce the number of decks that can sail at once. The inventory exercise turns nominal hull counts into a more realistic picture of immediate naval aviation power.