This is the list of military alliances. A military alliance is a formal agreement between two or more parties 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 are 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.
Legend | |
---|---|
Active military alliances |
Years | Name | Members |
---|---|---|
c. 7th century–338 BC | Latin League | About 30 villages and tribes in the region of Latium |
c. 6th century–338 BC | Peloponnesian League | Various city-states in the Peloponnese, dominated by Sparta |
493 BC | Foedus Cassianum |
Roman Republic Latin League |
478–404 BC | Delian League | See Members of the Delian League |
215 BC | Macedonian–Carthaginian Treaty |
Macedonia Carthage |
433–554 | Silla-Baekje Alliance | ![]() ![]() |
1123 | Pactum Warmundi | ![]() ![]() |
1167–1250 | Lombard League | Numerous cities in medieval Lombardy, modern Northern Italy |
Name and description | Countries |
---|---|
CANZUK is a proposed alliance between four Commonwealth realms. | ![]() ![]() ![]() ![]() |
France–Japan Reciprocal Access Agreement is currently being negotiated to finalize a formal alliance between Japan and France. [86] | ![]() ![]() |
EU–UK Mutual Defence Agreement is a proposal, most notably from the Labour Party, to sign a formal alliance between the EU and the UK. [87] | ![]() ![]() |
Japan–Philippines Reciprocal Access Agreement was negotiated due to rising political tensions in the Pacific. [88] [89] Ratification by both countries' legislatures pending. [90] | ![]() ![]() |
South Korea–Japan Defense Pact [91] is a proposed alliance between South Korea and Japan in response to increased aggression from North Korea. | ![]() ![]() |
Japan–Philippines–United States trilateral alliance is currently being negotiated in response to increased military build-up by China. [92] | ![]() ![]() ![]() |
France–Philippines Visiting Forces Agreement is being negotiated. [93] | ![]() ![]() |
Arab-Israeli alliance refers to an unofficial security coalition comprising Israel and various Arab countries. | ![]() ![]() ![]() ![]() ![]() ![]() |
The Saudi-US Security Pact is a long proposed official deal to deepen security relations, gaining momentum under the Biden administration. [94] | ![]() ![]() |
This is the list of military alliances. A military alliance is a formal agreement between two or more parties 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 are 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.
Legend | |
---|---|
Active military alliances |
Years | Name | Members |
---|---|---|
c. 7th century–338 BC | Latin League | About 30 villages and tribes in the region of Latium |
c. 6th century–338 BC | Peloponnesian League | Various city-states in the Peloponnese, dominated by Sparta |
493 BC | Foedus Cassianum |
Roman Republic Latin League |
478–404 BC | Delian League | See Members of the Delian League |
215 BC | Macedonian–Carthaginian Treaty |
Macedonia Carthage |
433–554 | Silla-Baekje Alliance | ![]() ![]() |
1123 | Pactum Warmundi | ![]() ![]() |
1167–1250 | Lombard League | Numerous cities in medieval Lombardy, modern Northern Italy |
Name and description | Countries |
---|---|
CANZUK is a proposed alliance between four Commonwealth realms. | ![]() ![]() ![]() ![]() |
France–Japan Reciprocal Access Agreement is currently being negotiated to finalize a formal alliance between Japan and France. [86] | ![]() ![]() |
EU–UK Mutual Defence Agreement is a proposal, most notably from the Labour Party, to sign a formal alliance between the EU and the UK. [87] | ![]() ![]() |
Japan–Philippines Reciprocal Access Agreement was negotiated due to rising political tensions in the Pacific. [88] [89] Ratification by both countries' legislatures pending. [90] | ![]() ![]() |
South Korea–Japan Defense Pact [91] is a proposed alliance between South Korea and Japan in response to increased aggression from North Korea. | ![]() ![]() |
Japan–Philippines–United States trilateral alliance is currently being negotiated in response to increased military build-up by China. [92] | ![]() ![]() ![]() |
France–Philippines Visiting Forces Agreement is being negotiated. [93] | ![]() ![]() |
Arab-Israeli alliance refers to an unofficial security coalition comprising Israel and various Arab countries. | ![]() ![]() ![]() ![]() ![]() ![]() |
The Saudi-US Security Pact is a long proposed official deal to deepen security relations, gaining momentum under the Biden administration. [94] | ![]() ![]() |