| Alliance Name | Joined In | Members | % Correct |
|---|---|---|---|
| Anglo-Portuguese Treaty of 1373 | 1373 | Kingdom of England | 97%
|
| Treaty of Windsor | 1386 | Kingdom of England | 97%
|
| Entente Cordiale | 1904 | United Kingdom | 97%
|
| Five Eyes | 1943 | United Kingdom | 97%
|
| North Atlantic Treaty Organization (NATO) | 1949 | United Kingdom | 97%
|
| US-UK Mutual Defence Agreement | 1958 | United Kingdom | 97%
|
| Five Power Defence Arrangements | 1971 | United Kingdom | 97%
|
| Lancaster House Treaties | 2010 | United Kingdom | 97%
|
| Anglo-Polish Defense Treaty | 2017 | United Kingdom | 97%
|
| AUKUS | 2021 | United Kingdom | 97%
|
| Israel-United Kingdom Defence Pact | 2021 | United Kingdom | 97%
|
| British–Polish–Ukrainian trilateral pact | 2022 | United Kingdom | 97%
|
| UK-Sweden Defence Agreement | 2022 | United Kingdom | 97%
|
| UK-Finland Defence Agreement | 2022 | United Kingdom | 97%
|
| UK-Oman Mutual Defence Agreement | 2022 | United Kingdom | 97%
|
| Anglo-Japanese Reciprocal Access Agreement | 2023 | United Kingdom | 97%
|
| Anglo-Greek Defence Agreement | 2023 | United Kingdom | 97%
|
| United Nations Command | 1950 | United Kingdom | 97%
|
| Entente Cordiale | 1904 | France | 96%
|
| North Atlantic Treaty Organization (NATO) | 1949 | France | 96%
|
| European Union (EU) | 1957 | France | 96%
|
| Lancaster House Treaties | 2010 | France | 96%
|
| Franco-Greek defence agreement | 2021 | France | 96%
|
| United Nations Command | 1950 | France | 96%
|
| Anglo-Portuguese Treaty of 1373 | 1373 | Kingdom of Portugal | 96%
|
| Treaty of Windsor | 1386 | Kingdom of Portugal | 96%
|
| North Atlantic Treaty Organization (NATO) | 1949 | Portugal | 96%
|
| European Union (EU) | 1986 | Portugal | 96%
|
| US-Greece Defense Agreement | 2019 | United States | 94%
|
| Ogdensburg Agreement | 1940 | United States of America | 94%
|
| Five Eyes | 1943 | United States of America | 94%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | United States of America | 94%
|
| North Atlantic Treaty Organization (NATO) | 1949 | United States of America | 94%
|
| Mutual Defense Treaty (United States - Philippines) | 1951 | United States of America | 94%
|
| ANZUS Treaty | 1951 | United States of America | 94%
|
| U.S.-Japan Alliance | 1951 | United States of America | 94%
|
| Brazil–United States Treaty | 1952 | United States of America | 94%
|
| US–Israel Mutual Defense Assistance Agreement | 1952 | United States of America | 94%
|
| Mutual Defense Treaty (United States–South Korea) | 1953 | United States of America | 94%
|
| Mutual Defense Assistance Agreement (United States-Pakistan) | 1954 | United States of America | 94%
|
| US-UK Mutual Defence Agreement | 1958 | United States of America | 94%
|
| Treaty of Mutual Cooperation and Security between the United States and Japan | 1960 | United States of America | 94%
|
| Thanat–Rusk Communiqué | 1962 | United States of America | 94%
|
| Taiwan Relations Act | 1979 | United States of America | 94%
|
| Enhanced Defense Cooperation Agreement | 2014 | United States of America | 94%
|
| AUKUS | 2021 | United States of America | 94%
|
| US-Jordan Defense Cooperation Agreement | 2021 | United States of America | 94%
|
| Papua New Guinea-United States Defence Agreement | 2023 | United States of America | 94%
|
| United Nations Command | 1950 | United States of America | 94%
|
| Five Eyes | 1943 | Australia | 92%
|
| ANZUS Treaty | 1951 | Australia | 92%
|
| Five Power Defence Arrangements | 1971 | Australia | 92%
|
| AUKUS | 2021 | Australia | 92%
|
| Japan-Australia Reciprocal Access Agreement | 2023 | Australia | 92%
|
| United Nations Command | 1950 | Australia | 92%
|
| Ogdensburg Agreement | 1940 | Canada | 91%
|
| Five Eyes | 1943 | Canada | 91%
|
| North Atlantic Treaty Organization (NATO) | 1949 | Canada | 91%
|
| United Nations Command | 1950 | Canada | 91%
|
| North Atlantic Treaty Organization (NATO) | 1982 | Spain | 89%
|
| European Union (EU) | 1986 | Spain | 89%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Brazil | 88%
|
| Brazil–United States Treaty | 1952 | Brazil | 88%
|
| Five Eyes | 1943 | New Zealand | 87%
|
| ANZUS Treaty | 1951 | New Zealand | 87%
|
| Five Power Defence Arrangements | 1971 | New Zealand | 87%
|
| United Nations Command | 1950 | New Zealand | 87%
|
| Collective Security Treaty Organization (CSTO) | 1992 | Russia | 87%
|
| Union State | 1997 | Russia | 87%
|
| Russia–Syria–Iran–Iraq coalition | 2015 | Russia | 87%
|
| Sino-North Korean Mutual Aid and Cooperation Friendship Treaty | 1961 | China | 85%
|
| Solomon Islands-China Security Pact | 2022 | China | 85%
|
| North Atlantic Treaty Organization (NATO) | 1999 | Poland | 85%
|
| European Union (EU) | 2004 | Poland | 85%
|
| Anglo-Polish Defense Treaty | 2017 | Poland | 85%
|
| Lublin Triangle | 2020 | Poland | 85%
|
| British–Polish–Ukrainian trilateral pact | 2022 | Poland | 85%
|
| European Union (EU) | 1995 | Sweden | 85%
|
| UK-Sweden Defence Agreement | 2022 | Sweden | 85%
|
| North Atlantic Treaty Organization (NATO) | 2023 | Finland | 84%
|
| European Union (EU) | 1995 | Finland | 84%
|
| UK-Finland Defence Agreement | 2022 | Finland | 84%
|
| North Atlantic Treaty Organization (NATO) | 1952 | Greece | 84%
|
| European Union (EU) | 1981 | Greece | 84%
|
| US-Greece Defense Agreement | 2019 | Greece | 84%
|
| Franco-Greek defence agreement | 2021 | Greece | 84%
|
| Anglo-Greek Defence Agreement | 2023 | Greece | 84%
|
| United Nations Command | 1950 | Greece | 84%
|
| Russia–Syria–Iran–Iraq coalition | 2015 | Iran | 84%
|
| Russia–Syria–Iran–Iraq coalition | 2015 | Iraq | 84%
|
| Egypt-Iraq-Jordan Entente | 2022 | Iraq | 84%
|
| US–Israel Mutual Defense Assistance Agreement | 1952 | Israel | 84%
|
| Israel-United Kingdom Defence Pact | 2021 | Israel | 84%
|
| North Atlantic Treaty Organization (NATO) | 1949 | Italy | 84%
|
| European Union (EU) | 1957 | Italy | 84%
|
| United Nations Command | 2013 | Italy | 84%
|
| Sino-North Korean Mutual Aid and Cooperation Friendship Treaty | 1961 | North Korea | 84%
|
| North Atlantic Treaty Organization (NATO) | 1949 | Belgium | 83%
|
| European Union (EU) | 1957 | Belgium | 83%
|
| United Nations Command | 1950 | Belgium | 83%
|
| North Atlantic Treaty Organization (NATO) | 1990 | Germany | 83%
|
| European Union (EU) | 1957 | Germany | 83%
|
| U.S.-Japan Alliance | 1951 | Japan | 83%
|
| Treaty of Mutual Cooperation and Security between the United States and Japan | 1960 | Japan | 83%
|
| Japan-Australia Reciprocal Access Agreement | 2023 | Japan | 83%
|
| Anglo-Japanese Reciprocal Access Agreement | 2023 | Japan | 83%
|
| Mutual Defense Assistance Agreement (United States-Pakistan) | 1954 | Pakistan | 83%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Pakistan | 83%
|
| Mutual Defense Treaty (United States–South Korea) | 1953 | South Korea | 83%
|
| Lublin Triangle | 2020 | Ukraine | 83%
|
| British–Polish–Ukrainian trilateral pact | 2022 | Ukraine | 83%
|
| Association Trio | 2021 | Ukraine | 83%
|
| North Atlantic Treaty Organization (NATO) | 1955 | West Germany | 83%
|
| North Atlantic Treaty Organization (NATO) | 1949 | Norway | 82%
|
| United Nations Command | 1999 | Norway | 82%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Argentina | 81%
|
| North Atlantic Treaty Organization (NATO) | 1949 | Denmark | 81%
|
| European Union (EU) | 1973 | Denmark | 81%
|
| United Nations Command | 2000 | Denmark | 81%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Egypt | 81%
|
| Egypt-Iraq-Jordan Entente | 2022 | Egypt | 81%
|
| Peninsula Shield Force | 1984 | Oman | 81%
|
| Islamic Military Counter Terrorism Coalition | 2016 | Oman | 81%
|
| UK-Oman Mutual Defence Agreement | 2022 | Oman | 81%
|
| North Atlantic Treaty Organization (NATO) | 1952 | Turkey | 81%
|
| Agreement on Strategic Partnership and Mutual Support | 2010 | Turkey | 81%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Turkey | 81%
|
| Shusha Declaration | 2021 | Turkey | 81%
|
| United Nations Command | 1950 | Turkey | 81%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Jordan | 80%
|
| US-Jordan Defense Cooperation Agreement | 2021 | Jordan | 80%
|
| Egypt-Iraq-Jordan Entente | 2022 | Jordan | 80%
|
| North Atlantic Treaty Organization (NATO) | 1949 | Netherlands | 80%
|
| European Union (EU) | 1957 | Netherlands | 80%
|
| Russia–Syria–Iran–Iraq coalition | 2015 | Syria | 80%
|
| Taiwan Relations Act | 1979 | Taiwan | 80%
|
| North Atlantic Treaty Organization (NATO) | 2004 | Estonia | 78%
|
| European Union (EU) | 2004 | Estonia | 78%
|
| North Atlantic Treaty Organization (NATO) | 2004 | Latvia | 77%
|
| European Union (EU) | 2004 | Latvia | 77%
|
| North Atlantic Treaty Organization (NATO) | 1949 | Luxembourg | 77%
|
| European Union (EU) | 1957 | Luxembourg | 77%
|
| European Union (EU) | 1995 | Austria | 76%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Chile | 76%
|
| North Atlantic Treaty Organization (NATO) | 2004 | Lithuania | 76%
|
| European Union (EU) | 2004 | Lithuania | 76%
|
| Lublin Triangle | 2020 | Lithuania | 76%
|
| Mutual Defense Treaty (United States - Philippines) | 1951 | Philippines | 76%
|
| Enhanced Defense Cooperation Agreement | 2014 | Philippines | 76%
|
| United Nations Command | 1950 | Philippines | 76%
|
| Peninsula Shield Force | 1984 | Qatar | 76%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Qatar | 76%
|
| Peninsula Shield Force | 1984 | Saudi Arabia | 76%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Saudi Arabia | 76%
|
| Collective Security Treaty Organization (CSTO) | 1992 | Belarus | 75%
|
| Union State | 1997 | Belarus | 75%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Colombia | 75%
|
| United Nations Command | 1950 | Colombia | 75%
|
| North Atlantic Treaty Organization (NATO) | 2004 | Romania | 75%
|
| European Union (EU) | 2007 | Romania | 75%
|
| United Nations Command | 1950 | The Netherlands | 75%
|
| North Atlantic Treaty Organization (NATO) | 2009 | Croatia | 74%
|
| European Union (EU) | 2013 | Croatia | 74%
|
| North Atlantic Treaty Organization (NATO) | 1999 | Hungary | 74%
|
| European Union (EU) | 2004 | Hungary | 74%
|
| Collective Security Treaty Organization (CSTO) | 1992 | Kazakhstan | 74%
|
| North Atlantic Treaty Organization (NATO) | 2004 | Slovakia | 74%
|
| European Union (EU) | 2004 | Slovakia | 74%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 - 2015, 2019 - Present | Venezuela | 74%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Yemen | 74%
|
| Collective Security Treaty Organization (CSTO) | 1992 | Armenia | 73%
|
| North Atlantic Treaty Organization (NATO) | 1949 | Iceland | 73%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Panama | 73%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Peru | 73%
|
| North Atlantic Treaty Organization (NATO) | 2004 | Slovenia | 73%
|
| European Union (EU) | 2004 | Slovenia | 73%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 - 2019, 2020 - Present | Uruguay | 73%
|
| North Atlantic Treaty Organization (NATO) | 1999 | Czech Republic | 72%
|
| European Union (EU) | 2004 | Czech Republic | 72%
|
| European Union (EU) | 1973 | Ireland | 72%
|
| Peninsula Shield Force | 1984 | United Arab Emirates | 72%
|
| Islamic Military Counter Terrorism Coalition | 2015 | United Arab Emirates | 72%
|
| North Atlantic Treaty Organization (NATO) | 2004 | Bulgaria | 71%
|
| European Union (EU) | 2007 | Bulgaria | 71%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Niger | 71%
|
| Alliance of Sahel States | 2023 | Niger | 71%
|
| Papua New Guinea-United States Defence Agreement | 2023 | Papua New Guinea | 71%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Paraguay | 71%
|
| North Atlantic Treaty Organization (NATO) | 2009 | Albania | 70%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Dominican Republic | 70%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Haiti | 70%
|
| Peninsula Shield Force | 1984 | Kuwait | 70%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Kuwait | 70%
|
| Solomon Islands-China Security Pact | 2022 | Solomon Islands | 70%
|
| Agreement on Strategic Partnership and Mutual Support | 2010 | Azerbaijan | 69%
|
| Shusha Declaration | 2021 | Azerbaijan | 69%
|
| Peninsula Shield Force | 1984 | Bahrain | 69%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Bahrain | 69%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Guatemala | 69%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Honduras | 69%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Morocco | 69%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Sudan | 69%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | Costa Rica | 68%
|
| Association Trio | 2021 | Georgia | 68%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Lebanon | 68%
|
| Collective Security Treaty Organization (CSTO) | 1992 | Kyrgyzstan | 67%
|
| North Atlantic Treaty Organization (NATO) | 2017 | Montenegro | 67%
|
| North Atlantic Treaty Organization (NATO) | 2020 | North Macedonia | 67%
|
| Collective Security Treaty Organization (CSTO) | 1992 | Tajikistan | 67%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Mali | 66%
|
| Alliance of Sahel States | 2023 | Mali | 66%
|
| Association Trio | 2021 | Moldova | 66%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Afghanistan | 65%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1948 | El Salvador | 65%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Somalia | 65%
|
| European Union (EU) | 2004 | Cyprus | 64%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Libya | 64%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Nigeria | 64%
|
| European Union (EU) | 2004 | Malta | 63%
|
| United Nations Command | 1950 | South Africa | 63%
|
| Regional Security System | 2022 | Guyana | 62%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Chad | 61%
|
| Five Power Defence Arrangements | 1971 | Malaysia | 61%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Malaysia | 61%
|
| Regional Security System | 1982 | Dominica | 60%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1982 | The Bahamas | 60%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Tunisia | 60%
|
| Regional Security System | 2023 | Jamaica | 59%
|
| Regional Security System | 1982 | Barbados | 58%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Mauritania | 58%
|
| Regional Security System | 1982 | Saint Lucia | 58%
|
| Regional Security System | 1983 | Saint Kitts and Nevis | 57%
|
| Inter-American Treaty of Reciprocal Assistance (Rio Pact) | 1967 | Trinidad and Tobago | 57%
|
| Regional Security System | 1982 | Antigua and Barbuda | 56%
|
| Regional Security System | 1985 | Grenada | 56%
|
| Regional Security System | 1982 | Saint Vincent and the Grenadines | 55%
|
| Five Power Defence Arrangements | 1971 | Singapore | 55%
|
| Thanat–Rusk Communiqué | 1962 | Thailand | 55%
|
| United Nations Command | 1950 | Thailand | 55%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Burkina Faso | 54%
|
| Alliance of Sahel States | 2023 | Burkina Faso | 54%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Benin | 51%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Guinea | 51%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Senegal | 51%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Togo | 50%
|
| Islamic Military Counter Terrorism Coalition | 2022 | Kenya | 49%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Bangladesh | 48%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Djibouti | 46%
|
| Islamic Military Counter Terrorism Coalition | 2015 | The Gambia | 46%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Guinea-Bissau | 45%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Sierra Leone | 44%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Ivory Coast | 43%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Comoros | 39%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Palestine | 39%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Brunei | 37%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Maldives | 37%
|
| Islamic Military Counter Terrorism Coalition | 2021 | Uganda | 37%
|
| Islamic Military Counter Terrorism Coalition | 2015 | Gabon | 33%
|