List Of NATO Countries With Details (2024 Updated)

Last Updated: 3 January 2024

Before we get into the List of NATO Counties, let’s have a quick intro about NATO and how it works.

North Atlantic Treaty Organization in short NATO is an international alliance that consists of 30 member states from Europe, North America, and Asia. It was established at the signing of the North Atlantic Treaty on 4 April 1949.

Article Five of the treaty states that if an armed attack occurs against one of the member states, it shall be considered an attack against all members, and other members shall assist the attacked member, with armed forces if necessary.

Facts About NATO

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• Out of the 30 member countries, 27 are located in Europe, two in North America, and one in Asia.

• Between 1994 and 1997, broader forums for regional cooperation between NATO and its neighbors were set up, including the Partnership for Peace, the Mediterranean Dialogue initiative, and the Euro-Atlantic Partnership Council.

• All members have militaries, except for Iceland, which does not have a typical army but a coast guard and a small unit of civilian specialists for NATO operations.

• Three of NATO’s members are nuclear weapons states: France, the United Kingdom, and the United States.

• NATO has 12 original founding member states. Three more members joined between 1952 and 1955, and a fourth new member joined in 1982.

• After the end of the Cold War, NATO added 14 more members from 1999 to 2020.

• NATO currently recognizes Bosnia and Herzegovina, Georgia, and Ukraine as aspiring members as part of their Open Doors enlargement policy.

• No country that has joined NATO has ever opted to leave it.

List Of NATO Countries

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No.	Flag	Country	Capital	Accession	Area (km2)
1		Albania	Tirana	1 Apr 2009	28,748
2		Belgium	Brussels	24 Aug 1949	30,528
3		Bulgaria	Sofia	29 Mar 2004	1,10,879
4		Canada	Ottawa	24 Aug 1949	9,984,670
5		Croatia	Zagreb	1 Apr 2009	56,594
6		Czech Republic	Prague	12 Mar 1999	78,867
7		Denmark	Copenhagen	24 Aug 1949	2,210,573
8		Estonia	Tallinn	29 Mar 2004	45,228
9		Finland	Helsinki	4 Apr 2023	3,38,455
10		France	Paris	24 Aug 1949	6,43,427
11		Germany	Berlin	8 May 1955	3,57,022
12		Greece	Athens	18 Feb 1952	1,31,957
13		Hungary	Budapest	12 Mar 1999	93,028
14		Iceland	Reykjavík	24 Aug 1949	1,03,000
15		Italy	Rome	24 Aug 1949	3,01,340
16		Latvia	Riga	29 Mar 2004	64,589
17		Lithuania	Vilnius	29 Mar 2004	65,300
18		Luxembourg	Luxembourg	24 Aug 1949	2,586
19		Montenegro	Podgorica	5 Jun 2017	13,812
20		Netherlands	Amsterdam	24 Aug 1949	41,543
21		North Macedonia	Skopje	27 Mar 2020	25,713
22		Norway	Oslo	24 Aug 1949	3,23,802
23		Poland	Warsaw	12 Mar 1999	3,12,685
24		Portugal	Lisbon	24 Aug 1949	92,090
25		Romania	Bucharest	29 Mar 2004	2,38,391
26		Slovakia	Bratislava	29 Mar 2004	49,035
27		Slovenia	Ljubljana	29 Mar 2004	20,273
28		Spain	Madrid	30 May 1982	5,05,370
29		Turkey	Ankara	18 Feb 1952	7,83,562
30		United Kingdom	London	24 Aug 1949	2,43,610
31		United States	Washington, D.C.	24 Aug 1949	9,833,520

Founding And Changes In Membership

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• Eighteen countries have joined NATO since its founding in 1949 by 12 countries (Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, the United Kingdom, and the United States). No countries have left.

• The largest membership increase occurred in 2004 when 7 countries joined.

• Twentieth Century additions included Greece and Turkey in 1952, West Germany in 1955, and Spain in 1982. Three former Warsaw Pact countries, Hungary, the Czech Republic, and Poland joined in 1999 (invited 1997). The 1990 reunification of Germany brought in the territory of the former country of East Germany.

• Twenty-first Century additions began in May 2000 when 10 countries of the Baltics and Eastern Europe formed the Vilnius group to cooperate and lobby for NATO membership.

• Seven within the Vilnius group (Bulgaria, Estonia, Latvia, Lithuania, Romania, Slovakia, Slovenia) joined in 2004.

• The remaining three joined subsequently, Albania and Croatia in 2009 and North Macedonia in 2020. Montenegro joined in 2017.

Military Personnel Of NATO Countries

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The following list is constructed from The Military Balance, published annually by the International Institute for Strategic Studies

No.	Flag	Country	Active Military	Reserve Military	Para Military	Total Military
1		Albania	10,500	0	500	11,000
2		Belgium	29,400	5,900	0	35,300
3		Bulgaria	42,663	3,000	0	45,663
4		Canada	70,500	35,600	5,500	111,600
5		Croatia	16,700	21,000	3,000	40,700
6		Czech Republic	27,400	4,200	0	31,600
7		Denmark	20,440	45,800	0	66,240
8		Estonia	7,600	230,000	15,800	253,400
9		Finland	24,250	900,000	14,321	938,571
10		France	208,750	141,050	175,050	524,850
11		Germany	184,100	50,050	0	234,150
12		Greece	143,300	221,350	4,000	368,650
13		Hungary	41,600	20,000	12,000	73,600
14		Iceland	250	250	250	750
15		Italy	175,100	18,300	182,350	375,750
16		Latvia	16,700	36,000	0	52,700
17		Lithuania	23,000	90,000	14,150	127,150
18		Luxembourg	940	0	600	1,540
19		Montenegro	2,350	2,800	10,100	15,250
20		Netherlands	41,543	6,643	6,500	54,686
21		North Macedonia	8,000	26,850	7,600	42,450
22		Norway	25,400	40,000	0	65,400
23		Poland	164,500	200,000	75,400	439,900
24		Portugal	33,200	211,700	24,700	269,600
25		Romania	72,000	55,000	79,900	206,900
26		Slovakia	19,500	0	0	19,500
27		Slovenia	7,500	26,200	5,950	39,650
28		Spain	133,282	15,450	75,800	224,532
29		Turkey	640,811	378,700	156,800	1,176,311
30		United Kingdom	196,453	78,600	0	275,053
31		United States	1,456,870	870,760	0	2,327,630
		NATO	3,845,002	3,735,203	870,271	8,450,476

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