Carrier neutrality
Isn't that where you have carriers you're too afraid to put in harms way (like the US), or is it where you have a carrier or two, but they don't have any aircraft, making them as useful as a £6bn chocolate teapot (like the UK)? Or is where you have a carrier, but you don't join in the regular "bomb the savages on made up evidence" parties held by the international community (France, I'm looking at you)?