Special Report

These Are the NATO Countries with the Most Military Ships and Submarines

Latvia+navy | Sailors arrange lines after departing Riga, Latvia.
usnavy / Flickr

Sweden is the newest country to join the North Atlantic Treaty Organization (NATO). With this addition, NATO greatly adds to its military might, especially in terms of its navy. While Sweden might not have the biggest or the most advanced military, it has a prominent coastline in Northern Europe that is patrolled by one of the largest navies on the planet.

Although Sweden does not have any aircraft carriers, it has one of the largest fleets of patrol vessels in the world. Also unlike many countries, Sweden owns a handful of submarines and corvette-class warships.

There are a number of formidable navies within NATO, not just Sweden. The United States is by far considered the strongest naval power in the world, boasting 11 aircraft carriers. Italy ranks high as well, with over 300 warships and submarines in its navy, along with two aircraft carriers. (These are all seven world powers with aircraft carriers, ranked.)

To identify the NATO countries with the most military ships and submarines, 24/7 Wall St. reviewed 2024 Military Strength Ranking from Global Firepower, an annually updated defense-related statistics website with information on 145 countries. Countries were ranked on the total number of military ships and submarines in their fleet. We included supplemental information regarding submarines, aircraft carriers, destroyers, corvettes, patrol vessels, and frigates, as well as each country’s overall military strength score.

There is one country in NATO that has no military and thus no navy, and that country is Iceland. This frozen nation never established a naval force, despite being a founding member of NATO. Instead, Iceland relies on the collective defense guarantee should any need arise. A few other countries in NATO are completely landlocked and have no need for a navy as well. (These are the NATO countries with the highest military spending.)

Here is a look at the NATO countries with the most military ships and submarines:

32. Iceland

patpongs / iStock via Getty Images
  • Total ships and submarines: 0
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 0
  • Military strength score: 3.5038 – #136 out of 145

31. North Macedonia

Leonid Andronov / iStock via Getty Images
  • Total ships and submarines: 0
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 0
  • Military strength score: 2.1717 – #110 out of 145

30. Luxembourg

SvetlanaSF / iStock Editorial via Getty Images
  • Total ships and submarines: 0
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 0
  • Military strength score: 2.1458 – #109 out of 145

29. Slovakia

  • Total ships and submarines: 0
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 0
  • Military strength score: 1.1891 – #69 out of 145

28. Hungary

Public Domain / Wikimedia Commons
  • Total ships and submarines: 0
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 0
  • Military strength score: 0.8478 – #54 out of 145

27. Czechia

  • Total ships and submarines: 0
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 0
  • Military strength score: 0.7706 – #46 out of 145

26. Slovenia

Slovenia+military+aircraft | 160310-F-NH180-165
U.S. Department of Defense / Public Domain / Flickr
  • Total ships and submarines: 2
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 2
  • Military strength score: 1.8286 – #91 out of 145

25. Belgium

atoach / Flickr
  • Total ships and submarines: 9
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 2
  • Destroyers: 0
  • Patrol vessels:: 2
  • Military strength score: 1.2064 – #70 out of 145

24. Estonia

infomatique / Flickr
  • Total ships and submarines: 10
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 6
  • Military strength score: 1.7237 – #87 out of 145

23. Lithuania

usnavy / Flickr
  • Total ships and submarines: 11
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 4
  • Military strength score: 1.7395 – #88 out of 145

22. Montenegro

mgaylard / Flickr
  • Total ships and submarines: 13
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 5
  • Military strength score: 2.9109 – #129 out of 145

21. Latvia

usnavy / Flickr
  • Total ships and submarines: 18
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 11
  • Military strength score: 1.9911 – #99 out of 145

20. Albania

defenceimages / Flickr
  • Total ships and submarines: 19
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 19
  • Military strength score: 1.8188 – #90 out of 145

19. Romania

usnavy / Flickr
  • Total ships and submarines: 20
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 7
  • Frigates: 3
  • Destroyers: 0
  • Patrol vessels:: 3
  • Military strength score: 0.7712 – #47 out of 145

18. Norway

alan_jamieson / Flickr
  • Total ships and submarines: 25
  • Total submarines: 6
  • Aircraft carriers: 0
  • Corvettes: 6
  • Frigates: 4
  • Destroyers: 0
  • Patrol vessels:: 17
  • Military strength score: 0.5664 – #41 out of 145

17. Croatia

usnavy / Flickr
  • Total ships and submarines: 32
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 10
  • Military strength score: 1.1333 – #66 out of 145

16. Bulgaria

usnavy / Flickr
  • Total ships and submarines: 40
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 3
  • Frigates: 4
  • Destroyers: 0
  • Patrol vessels:: 2
  • Military strength score: 1.0132 – #62 out of 145

15. Poland

cne-cna-c6f / Flickr
  • Total ships and submarines: 45
  • Total submarines: 1
  • Aircraft carriers: 0
  • Corvettes: 2
  • Frigates: 2
  • Destroyers: 0
  • Patrol vessels:: 3
  • Military strength score: 0.2917 – #21 out of 145

14. Germany

  • Total ships and submarines: 64
  • Total submarines: 6
  • Aircraft carriers: 0
  • Corvettes: 5
  • Frigates: 12
  • Destroyers: 0
  • Patrol vessels:: 0
  • Military strength score: 0.2847 – #19 out of 145

13. Canada

CatEyePerspective / iStock Editorial via Getty Images
  • Total ships and submarines: 67
  • Total submarines: 4
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 12
  • Destroyers: 0
  • Patrol vessels:: 14
  • Military strength score: 0.3813 – #27 out of 145

12. Denmark

usnavy / Flickr / CC BY 2.0
  • Total ships and submarines: 91
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 9
  • Destroyers: 0
  • Patrol vessels:: 45
  • Military strength score: 0.7743 – #48 out of 145

11. Netherlands

cityswift / Flickr
  • Total ships and submarines: 112
  • Total submarines: 3
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 6
  • Destroyers: 0
  • Patrol vessels:: 4
  • Military strength score: 0.5644 – #40 out of 145

10. Portugal

usnavy / Flickr
  • Total ships and submarines: 113
  • Total submarines: 2
  • Aircraft carriers: 0
  • Corvettes: 2
  • Frigates: 5
  • Destroyers: 0
  • Patrol vessels:: 20
  • Military strength score: 0.5609 – #38 out of 145

9. United Kingdom

Sitikka / iStock via Getty Images
  • Total ships and submarines: 117
  • Total submarines: 10
  • Aircraft carriers: 2
  • Corvettes: 0
  • Frigates: 11
  • Destroyers: 6
  • Patrol vessels:: 26
  • Military strength score: 0.1443 – #6 out of 145

8. France

vale_t / iStock Editorial via Getty Images
  • Total ships and submarines: 128
  • Total submarines: 9
  • Aircraft carriers: 1
  • Corvettes: 0
  • Frigates: 11
  • Destroyers: 10
  • Patrol vessels:: 15
  • Military strength score: 0.1878 – #11 out of 145

7. Spain

Public Domain / Wikimedia Commons
  • Total ships and submarines: 168
  • Total submarines: 3
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 11
  • Destroyers: 0
  • Patrol vessels:: 23
  • Military strength score: 0.2882 – #20 out of 145

6. Turkey

CatEyePerspective / iStock via Getty Images
  • Total ships and submarines: 186
  • Total submarines: 12
  • Aircraft carriers: 0
  • Corvettes: 9
  • Frigates: 16
  • Destroyers: 0
  • Patrol vessels:: 34
  • Military strength score: 0.1697 – #8 out of 145

5. Greece

mscsealift / Flickr
  • Total ships and submarines: 187
  • Total submarines: 11
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 13
  • Destroyers: 0
  • Patrol vessels:: 35
  • Military strength score: 0.4349 – #32 out of 145

4. Finland

dohne / Flickr
  • Total ships and submarines: 246
  • Total submarines: 0
  • Aircraft carriers: 0
  • Corvettes: 0
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 8
  • Military strength score: 0.7967 – #50 out of 145

3. Italy

usnavy / Flickr
  • Total ships and submarines: 309
  • Total submarines: 8
  • Aircraft carriers: 2
  • Corvettes: 0
  • Frigates: 13
  • Destroyers: 4
  • Patrol vessels:: 18
  • Military strength score: 0.1863 – #10 out of 145

2. Sweden

Denmark+Black+Hawk+helicopter | Sailor observes as an SH-60 Sea Hawk helicopter prepares for take off from the guided-missile cruiser USS Monterey
usnavy / Flickr
  • Total ships and submarines: 353
  • Total submarines: 5
  • Aircraft carriers: 0
  • Corvettes: 7
  • Frigates: 0
  • Destroyers: 0
  • Patrol vessels:: 298
  • Military strength score: 0.4009 – #29 out of 145

1. United States

usnavy / Flickr
  • Total ships and submarines: 472
  • Total submarines: 64
  • Aircraft carriers: 11
  • Corvettes: 23
  • Frigates: 0
  • Destroyers: 75
  • Patrol vessels:: 5
  • Military strength score: 0.0699 – #1 out of 145

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