This is the list of military alliances. A military alliance is an international agreement concerning national security in which the contracting parties agree to mutual protection and support in case of a crisis that has not been identified in advance. Military alliances differ from coalitions, which formed for a crisis that already exists. Numerous forms of military and defensive alliances have existed between states since early human history. This is a comprehensive list of the most important alliances.
All the participants in the Napoleonic Wars. Blue: The Coalition and their colonies and allies. Green: The First French Empire, its protectorates, colonies, and allies.
1907–1918 the Entente and the Allies – Russia (to 1917), United Kingdom, France, Italy, United States (from 1917), Japan, Serbia, Romania, Portugal (from 1916), China (from 1917)
1939–1945 Allies – Poland, United Kingdom, France (Third Republic)/Free France, Soviet Union (from 22 June 1941), United States (from 7 December 1941), China (at war with Japan from 1937; declared war on Germany 9 December 1941), and many others.
1942–1945 Declaration by United Nations: the main treaty that formalized the Allied powers; signed by 47 governments from 1 January 1942 onwards
1948–1954 Western Union (WU), also referred to as the Brussels Treaty Organisation (BTO) – France, Belgium, Luxembourg, the Netherlands and the United Kingdom
1949 North Atlantic Treaty Organisation (NATO) – United States, Canada, most of Western Europe
1979 Imperial Union (IU), also referred to as the Mecca Treaty Organization (MTO) - France, Saudi Arabia, Pakistan
1979-1989 Afghan War Allies - China, Egypt, France, Iran, Israel, Japan, Jordan, Pakistan, Saudi Arabia, Turkey, West Germany, United Kingdom, United States
1987–1989 Tanker War – Iraq, Kuwait, United States, Soviet Union, Saudi Arabia
1990–1991 Gulf War (Persian Gulf War, Second Persian Gulf War, First Gulf War, Gulf War I, Kuwait War, or First Iraq War)
Coalition: United States, Saudi Arabia, United Kingdom, Egypt, France, Syria, Morocco, Kuwait, Oman, Pakistan, Canada, United Arab Emirates, Qatar, Bangladesh, Australia, Netherlands, Niger, Sweden, Italy, Argentina, Spain, Belgium, Poland, South Korea, Czechoslovakia, Greece, Denmark, New Zealand, Hungary, Norway, Senegal and Bahrain.
1991–1999 Yugoslav Wars
1991–1995 Croatian War of Independence
1992–1995 United Nations Protection Force (UNPROFOR): Argentina, Australia, Bangladesh, Belgium, Brazil, Canada, Colombia, Czech Republic, Denmark, Egypt, Estonia, Finland, France, Germany, Ghana, India, Indonesia, Ireland, Italy, Jordan, Kenya, Lithuania, Luxembourg, Malaysia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Pakistan, Poland, Portugal, Russia, Slovak Republic, Spain, Sweden, Switzerland, Tunisia, Turkey, Ukraine, United Kingdom, United States
1995–1996 United Nations Confidence Restoration Operation in Croatia (UNCRO): Argentina, Belgium, Canada, Czech Republic, Denmark, Finland, France, Germany, Indonesia, Jordan, Kenya, Nepal, Netherlands, Norway, Poland, Russia, Slovakia, Sweden, Ukraine, United States
1994–1995 Allies: Bosnia and Herzegovina, Croatia, NATO
1992–1995 United Nations Protection Force (UNPROFOR): Argentina, Australia, Bangladesh, Belgium, Brazil, Canada, Colombia, Czech Republic, Denmark, Egypt, Estonia, Finland, France, Germany, Ghana, India, Indonesia, Ireland, Italy, Jordan, Kenya, Lithuania, Luxembourg, Malaysia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Pakistan, Poland, Portugal, Russia, Slovakia, Spain, Sweden, Switzerland, Tunisia, Turkey, Ukraine, United Kingdom, United States
1993–1995 Operation Deny Flight (NATO): Belgium, Canada, Denmark, France, Germany, Greece, Italy, Netherlands, Norway, Spain, Turkey, United Kingdom, United States
1995 Operation Deliberate Force (NATO): Belgium, Canada, Denmark, France, Germany, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Turkey, United Kingdom, United States
1995–1996 Implementation Force (IFOR): Australia, Austria, Bangladesh, Belgium, Canada, Czech Republic, Denmark, Egypt, Estonia, Finland, France, Germany, Hungary, Italy, Latvia, Lithuania, Luxembourg, Malaysia, Netherlands, New Zealand, Norway, Pakistan, Poland, Portugal, Romania, Russia, Slovakia, Spain, Sweden, Turkey, Ukraine, United Kingdom, United States
1996–2004 Stabilization ForceSFOR: Albania, Argentina, Australia, Austria, Belgium, Bulgaria, Canada, Czech Republic, Denmark, Egypt, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malaysia, Morocco, Netherlands, New Zealand, Norway, Poland, Portugal, Romania, Russia, Slovenia, Slovakia, Spain, Sweden, Turkey, Ukraine, United Kingdom, United States
1996 Shanghai Cooperation Organisation – An economic, military and political organisation including the Russian Federation, People's Republic of China, Republic of Kazakhstan, Republic of Tajikistan, Kyrgyz Republic, Republic of Uzbekistan and as of 2015, the Republic of India and Islamic Republic of Pakistan. Afghanistan, Belarus, Iran, Mongolia, Armenia, Azerbaijan, Cambodia, Nepal, Sri Lanka, Turkey, and Turkmenistan all hold the statuses of observer states, dialogue partners or guest attendees.
2004–present European Union Force Althea (EUFOR Althea): Albania, Austria, Belgium, Bulgaria, Chile, Czech Republic, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Luxembourg, Macedonia, Netherlands, Poland, Portugal, Romania, Slovenia, Slovakia, Spain, Sweden, Switzerland, Turkey, United Kingdom
1992–2003 operations in Macedonia:
1992–1995 United Nations Protection Force (UNPROFOR): Argentina, Australia, Bangladesh, Belgium, Brazil, Canada, Colombia, Czech Republic, Denmark, Egypt, Estonia, Finland, France, Germany, Ghana, India, Indonesia, Ireland, Italy, Jordan, Kenya, Lithuania, Luxembourg, Malaysia, Nepal, Netherlands, New Zealand, Nigeria, Norway, Pakistan, Poland, Portugal, Russia, Slovak Republic, Spain, Sweden, Switzerland, Tunisia, Turkey, Ukraine, United Kingdom, United States
1995–1999 United Nations Preventive Deployment Force (UNPREDEP): Argentina, Bangladesh, Belgium, Brazil, Canada, Czech Republic, Denmark, Egypt, Finland, Ghana, Indonesia, Ireland, Jordan, Kenya, Nepal, New Zealand, Nigeria, Norway, Pakistan, Poland, Portugal, Russia, Sweden, Switzerland, Turkey, Ukraine, United States
1999 Operation Allied Force (NATO): Belgium, Canada, Czech Republic, Denmark, France, Germany, Greece, Hungary, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Turkey, United Kingdom, United States
1999–present Kosovo Force (KFOR): Albania, Argentina, Armenia, Austria, Azerbaijan, Belgium, Bosnia and Herzegovina, Bulgaria, Canada, Chile, Croatia, Czech Republic, Denmark, Estonia, Finland, France, Georgia, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malaysia, Moldova, Mongolia, Morocco, Netherlands, Norway, Philippines, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey, Ukraine, United Arab Emirates, United Kingdom, United States
Angola • Burundi • Cameroon • Central African Republic • Chad • Democratic Republic of the Congo • Republic of the Congo • Gabon • Equatorial Guinea • Rwanda • Sao Tome and Principe
Brazil • Argentina • Uruguay • South Africa • Angola • Nigeria • Benin • Cameroon • Cabo Verde • Republic of the Congo • Democratic Republic of the Congo • Ivory Coast • Ghana • Guinea-Bissau • Guinea • Liberia • Namibia • Gabon • Equatorial Guinea • The Gambia • Togo • Senegal • Sierra Leone • Sao Tome and Principe
Americas[]
Organization
Countries
Organization of American States (OAS)
Argentina• Bolivia• Brazil• Chile• Costa Rica• Dominican Republic• Ecuador• El Salvador• Guatemala• Haiti• Honduras•Colombia• Mexico• Nicaragua• Panama• Paraguay• Peru • Uruguay• United States • Barbados• Trinidad and Tobago • Jamaica • Grenada• Suriname• Dominica • Saint Lucia • Antigua and Barbuda• Saint Vincent and the Grenadines • Bahamas • Saint Kitts and Nevis • Canada • Belize•Guyana
USA • Brazil • Argentina • Chile • Uruguay • Paraguay • Colombia • Haiti • Dominican Republic • El Salvador • Guatemala • Peru • The Bahamas • Trinidad and Tobago • Costa Rica • Panama • Honduras • Venezuela (Guaidó government)
Caribbean Community (CARICOM)
Antigua and Barbuda • Bahamas • Barbados • Belize • Dominica • Grenada • Guyana • Haiti • Jamaica • Montserrat • St. Kitts and Nevis • St. Lucia • St. Vincent and the Grenadines • Suriname • Trinidad and Tobago
North Atlantic Treaty Organization (NATO), Enlarged from 1999
United States • United Kingdom • France • Canada • Belgium • Denmark • Iceland • Italy • Luxembourg • Netherlands • Norway • Portugal • Greece • Turkey • Germany • Spain • Czech Republic • Hungary • Poland • Bulgaria • Estonia • Latvia • Lithuania • Romania • Slovakia • Slovenia • Albania • Croatia • Montenegro • North Macedonia
Kosovo Force - an international peacekeeping force established in 1999 following the Kosovo War
Albania • Armenia • Austria • Bulgaria • Canada • Croatia • Czech Republic • Denmark • Finland • Germany • Greece • Hungary • Ireland • Italy • Latvia • Lithuania • Moldova • Montenegro • North Macedonia • Poland • Romania • Slovenia • Sweden • Switzerland • Turkey • Ukraine • United Kingdom • United States
North America and Africa[]
Instrument
Countries
Moroccan-American Treaty of Friendship
United States • Morocco
North America and Asia[]
Instrument
Countries
US-Israel Strategic Partnership Declares Israel a major strategic partner of the United States and allows a greater mutual cooperation in defense and other categories
Combined Maritime Forces (CMF) is a series of three 34-nation naval task forces, each with a specific role including; anti-piracy, anti-terrorism, and maritime security.[6]
United States • United Kingdom • Canada • Australia • New Zealand • France • Italy • Germany • Spain • Portugal • Netherlands • Belgium • Denmark • Norway • Brazil • Greece • Turkey • Saudi Arabia • UAE • Kuwait • Iraq • Qatar • Yemen • Japan • South Korea • Thailand • Philippines • Singapore • Brunei • Jordan • Seychelles • Bahrain • Pakistan • Malaysia
France • Italy • Spain • Portugal • Netherlands • Romania • Turkey • Chile • Argentina • Ukraine • Palestine • Qatar • Djibouti • Tunisia • Jordan • Morocco • Brazil • Kuwait • Senegal
International Maritime Security Construct
Albania • Bahrain • Estonia • Lithuania • Saudi Arabia • UAE • United Kingdom • United States
Major non-NATO ally - Major allies of the United States, but not a member of NATO.
United States • Australia • New Zealand • South Korea • Japan • Taiwan • Philippines • Thailand • Pakistan • Kuwait • Jordan • Israel • Egypt • Tunisia • Brazil • Argentina • Morocco • Bahrain • Islamic Republic of Afghanistan (de jure) • Qatar
Proposed alliance[]
Proposed[]
Instrument
Countries
CANZUK is a proposed alliance between four nations of the Commonwealth realm