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