Ranking total number of submarine craft by country, from highest to lowest.
The modern attack submarine is capable of sea- and land-attack through conventional and nuclear means. Beyond their most obvious uses, submarines can be used in support of special forces operations and reconnaissance work. Many modern world navies utilize the submarine, primarily as a deterrent element in territorial waters with most modern, notable forces keeping a standard fleet of about five or more boats.
For the purposes of the GFP ranking, landlocked nations are NOT penalized for the lack of a standing naval force though nations with a standing navy ARE penalized for lacking certain naval assets (like submarines). This GFP listing does not make a distinction between nuclear- and diesel-electric-powered types nor does it take into account submarine classification (conventional attack, nuclear attack), age, and construction quality.
Data presented on this list is through 2021. Estimates are made when official data is not available.
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