Naval air squadron

A naval air squadron (NAS) is the title of naval aviation squadrons in some countries.
Poland.
The Polish "Morski Dywizjon Lotniczy" #Naval Air Squadron# was formed in 1920 with two "Escadrille"s#
United Kingdom.
The squadrons of the Fleet Air Arm are named as ""nnnn" Naval Air Squadron" where "nnnn" is a three or four digit number.