The Peloponnesian League was an alliance of ancient Greek

city-states A city-state is an independent sovereign city which serves as the center of political, economic, and cultural life over its contiguous territory. They have existed in many parts of the world since the dawn of history, including cities such as ...

, dominated by Sparta and centred on the

Peloponnese The Peloponnese (), Peloponnesus (; el, Πελοπόννησος, Pelopónnēsos,(), or Morea is a peninsula and geographic region in southern Greece. It is connected to the central part of the country by the Isthmus of Corinth land bridge whi ...

, which lasted from c.550 to 366 BC. It is known mainly for being one of the two rivals in the

Peloponnesian War The Peloponnesian War (431–404 BC) was an ancient Greek war fought between Athens and Sparta and their respective allies for the hegemony of the Greek world. The war remained undecided for a long time until the decisive intervention of ...

(431–404 BC), against the

Delian League The Delian League, founded in 478 BC, was an association of Greek city-states, numbering between 150 and 330, under the leadership of Athens, whose purpose was to continue fighting the Persian Empire after the Greek victory in the Battle of Pl ...

, which was dominated by

Athens Athens ( ; el, Αθήνα, Athína ; grc, Ἀθῆναι, Athênai (pl.) ) is both the capital city, capital and List of cities and towns in Greece, largest city of Greece. With a population close to four million, it is also the seventh List ...

Name

The Peloponnesian League is the modern name given to the Spartan system of alliances, but it is inaccurate because there were members outside the Peloponnese, and it was not really a league. The ancient name of the League was "the Lacedemonians and their allies". This is misleading as well, because Sparta could have allies outside of the Peloponnesian League.

History

Foundation (c. 550 BC)

In its early history, Sparta expanded by conquering

Laconia Laconia or Lakonia ( el, Λακωνία, , ) is a historical and administrative region of Greece located on the southeastern part of the Peloponnese peninsula. Its administrative capital is Sparta. The word '' laconic''—to speak in a blunt, ...

and

Messenia Messenia or Messinia ( ; el, Μεσσηνία ) is a regional unit (''perifereiaki enotita'') in the southwestern part of the Peloponnese region, in Greece. Until the implementation of the Kallikratis plan on 1 January 2011, Messenia was a ...

and reducing their population into slavery (as

helots The helots (; el, εἵλωτες, ''heílotes'') were a subjugated population that constituted a majority of the population of Laconia and Messenia – the territories ruled by Sparta. There has been controversy since antiquity as to their e ...

), but the subjugation of

Tegea Tegea (; el, Τεγέα) was a settlement in ancient Arcadia, and it is also a former municipality in Arcadia, Peloponnese, Greece. Since the 2011 local government reform it is part of the Tripoli municipality, of which it is a municipal unit ...

on its northern border failed at the battle of the Fetters. Following this defeat, Sparta abandoned its military conquests and adopted a diplomatic strategy, known as the "bones policy", by appropriating the relics of mythical heroes worshipped in the Peloponnese, starting with

Orestes In Greek mythology, Orestes or Orestis (; grc-gre, Ὀρέστης ) was the son of Clytemnestra and Agamemnon, and the brother of Electra. He is the subject of several Ancient Greek plays and of various myths connected with his madness and ...

, the son of Agamemnon, whose bones were transferred from Tegea to Sparta. This new diplomacy was likely sponsored by

Chilon Chilon of Sparta ( grc, Χείλων) (fl. 6th century BC) was a Spartan and one of the Seven Sages of Greece. Life Chilon was the son of Damagetus, and lived towards the beginning of the 6th century BC. Herodotus speaks of him as contemporary ...

ephor The ephors were a board of five magistrates in ancient Sparta. They had an extensive range of judicial, religious, legislative, and military powers, and could shape Sparta's home and foreign affairs. The word "''ephors''" ( Ancient Greek ''é ...

c.556, who therefore enabled Sparta to present itself as the natural successor of the mythical Achaean kingdom of Agamemnon as described by

Homer Homer (; grc, Ὅμηρος , ''Hómēros'') (born ) was a Greek poet who is credited as the author of the ''Iliad'' and the ''Odyssey'', two epic poems that are foundational works of ancient Greek literature. Homer is considered one of the ...

. Tegea then signed an alliance treaty with Sparta, which became the starting point of the subsequent Peloponnesian League. Tegea was pushed towards Sparta by its fear of Argos, its eastern neighbour. For the same reason, all the other neighbours of Argos rapidly concluded treaties with Sparta on the Tegean model:

Mantinea Mantineia (also Mantinea ; el, Μαντίνεια; also Koine Greek ''Antigoneia'') was a city in ancient Arcadia, Greece, which was the site of two significant battles in Classical Greek history. In modern times it is a former municipality in ...

, Phlieus,

Corinth Corinth ( ; el, Κόρινθος, Kórinthos, ) is the successor to an ancient city, and is a former municipality in Corinthia, Peloponnese, which is located in south-central Greece. Since the 2011 local government reform, it has been part o ...

, Epidaurus and the other cities of

Argolis Argolis or Argolida ( el, Αργολίδα , ; , in ancient Greek and Katharevousa) is one of the regional units of Greece. It is part of the region of Peloponnese, situated in the eastern part of the Peloponnese peninsula and part of the tripo ...

. They were followed by Elis, the large city of the western Peloponnesus, and all the Arcadian communities of central Peloponnesus. By 540s, Sparta had concluded alliances with all the Peloponnesian cities, apart from Argos and

Achaea Achaea () or Achaia (), sometimes transliterated from Greek as Akhaia (, ''Akhaïa'' ), is one of the regional units of Greece. It is part of the region of Western Greece and is situated in the northwestern part of the Peloponnese peninsula. Th ...

n cities on the northern shore.Ste. Croix, ''Origins of the Peloponnesian War'', p. 339. There was no collective treaty between all the members of the League. As ''hegemon'' (leader of the League), Sparta concluded a separate treaty with each member, which therefore entered the League upon its conclusion. Each member swore the same oath with Sparta: "to have the same friends and enemies as the Spartans, and to follow them withersoever they may lead". League members were consequently not bound together, only to Sparta, and could even wage war on each other. However, in 378 a League decision forbade internal wars if the League was operating an army outside of the Peloponnese, but perhaps this disposition had already been in place from much earlier and was a part of the constitution of the League. L. H. Jefery summarises the constitution of the League as "a circle centred on Sparta, with the spokes of a wheel but not necessarily with the added cross-links of a web." The League treaties contained defensive obligations: Sparta had to assist an ally attacked by a non-League member, and conversely the allies had to help Sparta in case of an attack.Cartledge, ''Agesilaos'', p. 10. The famous Spartan fear of the

is shown by a special clause providing that allies had to assist Sparta in case of a slave-revolt and must not offer citizenship to Messenians, because the Arcadians assisted the latter during the Spartan conquest of Messenia. This clause was activated in the 460s during the Third Messenian War. The treaties between Sparta and the allies were also permanent, with a clause forbidding secession. Several secessions did occur, but as a result of a breach of a treaty. Seceding members usually pointed out a breach of the treaties from Sparta to leave. The procedure to admit new members is not known. Sparta could either decide alone, or request the approval from their allies in the subsequent League congress.Ste. Croix, ''Origins of the Peloponnesian War'', p. 112. Another reason for the allies to remain within the League, despite their loss of autonomy, was the support of

oligarchy Oligarchy (; ) is a conceptual form of power structure in which power rests with a small number of people. These people may or may not be distinguished by one or several characteristics, such as nobility, fame, wealth, education, or corporate, ...

by Sparta. The oligarchs that ruled most of the League members could rely on Sparta to retain their status in their city. Moreover, many of them had friendship ties with Spartan citizens, or even the kings. The Spartan king

Agesilaus II Agesilaus II (; grc-gre, Ἀγησίλαος ; c. 442 – 358 BC) was king of Sparta from c. 399 to 358 BC. Generally considered the most important king in the history of Sparta, Agesilaus was the main actor during the period of Spartan hegemo ...

(r.c.400–c.360) was especially known for his guest-friendships ('' xenia'') among his allies. Thanks to these friendships, leading oligarchs could send their sons to the

agoge The ( grc-gre, ἀγωγή in Attic Greek, or , in Doric Greek) was the rigorous education and training program mandated for all male Spartan citizens, with the exception of the firstborn son in the ruling houses, Eurypontid and Agiad. The wor ...

, the Spartan education system, where they became ''trophimoi xenoi'', and further developed their attachment to Sparta.

Reform of 506 BC

A major change in the organisation of the League took place c.506, when the Spartan king

Cleomenes I Cleomenes I (; Greek Κλεομένης; died c. 490 BC) was Agiad King of Sparta from c. 524 to c. 490 BC. One of the most important Spartan kings, Cleomenes was instrumental in organising the Greek resistance against the Persian Empire of Dariu ...

attempted to capture

and place at its head his friend Isagoras as tyrant or as member of an oligarchy. A full army of the League was called and marched on Athens, but the Corinthians returned home when they discovered the purpose of the expedition, also encouraged by the other king

Demaratus Demaratus ( el, Δημάρατος ; Doric: ) was a king of Sparta from around 515 BC to 491 BC. The 15th of the Eurypontid line, he was the first son born to his father, King Ariston. As king, Demaratus is known chiefly for his opposition ...

, who opposed Cleomenes. The campaign therefore failed, and as a result Sparta had to concede the creation of a congress of the League, where members could vote on war and peace. It means that before that time, Sparta could call its allies at will without informing them of the purposes of the war. The Peloponnesian League therefore became a bicameral organisation, with two assemblies: the Spartan ecclesia and the congress of the League, both chaired by an ephor. Spartan citizens first debated the matter between them in the ecclesia. If a positive vote was reached in the ecclesia, the congress of the League was called, where the allies debated and voted on Sparta's proposal. Allies' votes were worth exactly the same in the League congress,Cartledge, ''Agesilaos'', p. 12. but Sparta likely did not participate in the vote, since its decision was already made by the ecclesia. League members were bound by the result of the League congress even if they had voted against it.Ste. Croix, ''Origins of the Peloponnesian War'', p. 104. Approval of the congress was necessary to declare a League war or make peace. Several instances of allies rejecting Sparta's proposals in the congress are known. The first of them took place c.504, when Sparta summoned what was perhaps the first congress of the League in order to attack Athens and install Hippias as tyrant, but the allies led by

unanimously rejected it. In 440, Sparta wanted to renew war against Athens, but the allies led by Corinth refused to go to war. These events show the great influence exercised by Corinth within the League, thanks to its strategic position on the Isthmus. Moreover, the Corinthians often opposed Sparta or forced its hand, such as in 421, when they refused to swear the oath required by the

Peace of Nicias The Peace of Nicias was a peace treaty signed between the Greek city-states of Athens and Sparta in March 421 BC that ended the first half of the Peloponnesian War. In 425 BC, the Spartans had lost the battles of Pylos and Sphacteria, a severe ...

with Athens in the middle of the Peloponnesian War. Their reason was that they would have infringed on some separate treaties concluded with their Thracian allies. In 396, they might have refused to follow Sparta because one of their temples burnt, which was seen as bad omen.Ste. Croix, ''Origins of the Peloponnesian War'', p. 120. The Corinthians seems to have fully exploited exemptions granted when "gods and heroes" were involved in opposition to League orders. Indeed, as most international decisions were bound by sacred oaths and the Spartans notoriously devout, using religious motives was a good way to avoid League obligations. Other League members are known to have used the same tricks, such as Phlious, which did not participate to the battle of Nemea in 394 because of an opportune sacred truce. In war, Sparta had exclusive command of the League army. One of the kings was usually commander-in-chief (it could also be a regent); Spartan officers named ''xenagoi'' supervised the levy among the allies and decided how much troops each ally should contribute.

Wars against Athens

In the academic literature of the 19th and early 20th century, it was often assumed that the Peloponnesian League was the same as the Hellenic League, the alliance in charge of the resistance against the

Persian Empire The Achaemenid Empire or Achaemenian Empire (; peo, 𐎧𐏁𐏂, , ), also called the First Persian Empire, was an ancient Iranian empire founded by Cyrus the Great in 550 BC. Based in Western Asia, it was contemporarily the largest emp ...

. In this view, Athens and its allies simply joined the Peloponnesian League to fight the Persians. The Hellenic League was actually a distinct and new creation for the conduct of war against Persia. Tensions between the two Leagues were key in the outbreak of the

First Peloponnesian War The First Peloponnesian War (460–445 BC) was fought between Sparta as the leaders of the Peloponnesian League and Sparta's other allies, most notably Thebes, and the Delian League led by Athens with support from Argos. This war consisted of ...

in 460 BC. The conflict between two Peloponnesian League members, Corinth and Megara, specifically the latter's defection to the Athenians due to perceived neglect by the Spartans, was a key factor in the outbreak of hostilities between the two Leagues. That war ended with the reintegration of Megara into the League. The two Leagues eventually came into conflict again with each other in the

. Under Spartan leadership, the League defeated Athens and its allies in 404 BC.

Reform of 378 BC

In 378, the League was reorganised in 10 military districts, while there had been no intermediary administrative level before.Stylianou, ''Historical Commentary on Diodorus'', p. 283. Several reasons can explain this new structure: Sparta probably wanted to enhance the League's efficiency after the recent inclusion of the distant Chalkidike. Moreover, the districts may have increased the number of available troops, while also lessening the burden on the allies by better spreading their contributions amon them. Each district had to contribute 3000-4000 hoplites to the League army, which therefore had a theoretical army of at least 30,000 men. In fact, as League members contributed different kinds of troops, a ratio of 1 cavalryman=4 hoplites=8 light troops was set up to balance contingents from each district. Starting in 383, League members could also opt to pay in cash to avoid sending men, with a rate of 12 Aeginetan obols per day for a cavalryman, and 3 for a hoplite. This option was apparently favoured by many cities; it suited Sparta, which could hire mercenaries. Only one ''xenagos'' was needed for each district, therefore easing the manpower pressure on Sparta, which suffered from a severe demographic decline in the 4th century; ''xenagoi'' previously had to be sent to every city member of the League. The ten districts were: # Lacedemonia, the territory of Sparta in the southern Peloponnese. # Arcadia (south?), one half of the historical region, perhaps centred on Tegea. Populous Arcadia was split in two in order to balance the number of soldiers between districts. # Arcadia (north?), the other half, perhaps centered on Mantinea. # Elis, the western Peloponnese. #

, the northern Peloponnese. # Corinth and Megara, located on the

Isthmus An isthmus (; ; ) is a narrow piece of land connecting two larger areas across an expanse of water by which they are otherwise separated. A tombolo A tombolo is a sandy or shingle isthmus. A tombolo, from the Italian ', meaning 'pillow' or ...

. #

Sicyon Sicyon (; el, Σικυών; ''gen''.: Σικυῶνος) or Sikyon was an ancient Greek city state situated in the northern Peloponnesus between Corinth and Achaea on the territory of the present-day regional unit of Corinthia. An ancient mon ...

, Phlius, and the Acte (now the

), the northeastern Peloponnese. # Acarnania, in western Greece. # Phokis and Lokris, in central Greece. # Olynthos and Thrace, which had just been conquered.

War against Thebes and end of the League

During its hegemony, Sparta adopted a more interventionist policy to preserve its supremacy over Greece. Elis had left the League since 420, but Sparta had to wait until the end of the Peloponnesian War to act on it. c.400, Sparta forced Elis back into the League, but also massively weakened it by giving independence to its periokoi cities of the Akrorians and Triphylians. These cities organised as federal states joined the Peloponnesian League as single units. In 385, Mantinea was disbanded into villages to punish its hegemonic behaviour in Arcadia, where Sparta had always adopted a "

divide and rule Divide and rule policy ( la, divide et impera), or divide and conquer, in politics and sociology is gaining and maintaining power divisively. Historically, this strategy was used in many different ways by empires seeking to expand their ter ...

" policy to prevent its unification. This blatant violation of the autonomy proclaimed during the King's Peace of 387 was bitterly received. The defeat of Sparta against Thebes at Leuktra in 371 BC decisively shook its control of the League members. In Arcadia, the Mantineans were the first to act by reconstituting their city. This time, the other Arcadian cities supported them, even their traditional rival Tegea, where pro-Mantinean democrats took over the pro-Spartan oligarchs. United by their hostility to Sparta, the Arcadians could then create the federal

Arcadian League The Arcadian League ( grc, ) was a league of city-states in ancient Greece. It combined the various cities of Arcadia, in the Peloponnese, into a single state. The league was founded in 370 BC, taking advantage of the decreased power of Sparta ...

and left the Peloponnesian League. The size of the Peloponnesian League was then further reduced by the Theban liberation of

from Spartan control in 369 BC. The states of the north-eastern Peloponnese, including

and

Epidauros Epidaurus ( gr, Ἐπίδαυρος) was a small city (''polis'') in ancient Greece, on the Argolid Peninsula at the Saronic Gulf. Two modern towns bear the name Epidavros: '' Palaia Epidavros'' and '' Nea Epidavros''. Since 2010 they belong to t ...

, adhered to their Spartan allegiance, but as the war continued in the 360s BC, many joined the Thebans or took a neutral position, though Elis and some of the Arcadian states realigned themselves with Sparta.

List of members

Original members (before c.504 BC)

was the first ally of Sparta in the alliance that evolved into the Peloponnesian League. * Corinth joined c.550. It was the most important member of the League beside Sparta. In 395, it left the League because of the

Corinthian War The Corinthian War (395–387 BC) was a conflict in ancient Greece which pitted Sparta against a coalition of city-states comprising Thebes, Athens, Corinth and Argos, backed by the Achaemenid Empire. The war was caused by dissatisfaction with ...

, but returned to Sparta with the King's Peace in 387. Its departure in 366 following the Spartan defeat against Thebes at Leuctra effectively ended the League. *

remained a member without interruption until 369, when it was conquered by

Epaminondas Epaminondas (; grc-gre, Ἐπαμεινώνδας; 419/411–362 BC) was a Greek general of Thebes and statesman of the 4th century BC who transformed the Ancient Greek city-state, leading it out of Spartan subjugation into a pre-eminent posi ...

. * Epidaurus joined because it felt threatened by Argos.Ste. Croix, ''Origins of the Peloponnesian War'', p. 333. It remained a member without interruption until 366. * Phleius joined because of the threat from Argos. Sparta intervened into its internal politics to protect the Phleiasian oligarchs in 384 and 381. The oligarchs then remained loyal to Sparta until 366. * Halieis probably remained a member until the campaign of

in Argolis in 369. *

Megara Megara (; el, Μέγαρα, ) is a historic town and a municipality in West Attica, Greece. It lies in the northern section of the Isthmus of Corinth opposite the island of Salamis, which belonged to Megara in archaic times, before being taken ...

possibly joined the League thanks to the intervention of king

in c.519. Megara frequently shifted allegiances between Sparta and Athens. It might have left before 511, since an expedition of the Spartan general Anchimolius against Athens did not pass through the isthmus. It was possibly forced to rejoin by Cleomenes in c.510 when he unseated the tyrant Hippias from Athens, after which he also punished Megara by giving the island of Salamis to Athens. Megara left the League again in 461 following a border war against Corinth and joined the

led by Athens, which precipitated the

. It rejoined in 448.Ste. Croix, ''Origins of the Peloponnesian War'', p. 123. Megara remained in the League until its dissolution. * Aegina became member before the end of the 6th century. It left the League in 457 after its capture by Athens, and joined instead the Delian League.Salmon, ''Wealthy Corinth'', p. 265. The city was destroyed by Athens in 431. Aegina was refounded by Lysander in 405 with the defeat of Athens and returned to the League. * Troezen left the League to Athens in 457, but rejoined following the

Thirty Years' Peace The Thirty Years' Peace was a treaty signed between the ancient Greek city-states of Athens and Sparta in 446/445 BC. The treaty brought an end to the conflict commonly known as the First Peloponnesian War, which had been raging since c. 460 BC. ...

. It remained loyal to Sparta until 366. * Hermione left the League to Athens c.450, but rejoined following the Thirty Years' Peace. It probably remained a member until the campaign of Epaminondas in Argolis in 369. * Elis was one of the earliest members of the League; it had already been allied with Sparta for two centuries.Hansen & Nielsen (eds.), ''Inventory'', p. 495. Like Sparta, it had many dependent cities of

perioeci The Perioeci or Perioikoi (, ) were the second-tier citizens of the ''polis'' of Sparta until 200 BC. They lived in several dozen cities within Spartan territories (mostly Laconia and Messenia), which were dependent on Sparta. The ''perioeci' ...

c status. In 420, Elis left the League because Sparta recognised the independence of perioecic Lepreon. Sparta had to wait until the end of the

to turn against Elis in the Elean War c.400. Victorious, Sparta forced Elis back into the league, as well as to release all its perioecic cities, which presumably formed two federal states and joined the Peloponnesian League. Elis defected again in 370 after Leuctra. *

defected from the League in 421, but rejoined after its defeat against Sparta in 418. It left again after Leuctra to found the

. * Orchomenus (Arcadian) was forced to temporarily defect in 418 by the coalition of Elis, Mantinea, Argos and Athens, but rejoined after the battle of Mantinea. * The situation in the rest of Arcadia is difficult to track, with many small communities organised in tribes and leagues of their own. However, all of these communities were members of the Peloponnesian League, which they left in 370 to found the

around the city of Megalopolis.

Later additions (after c.504 BC)

Mycenae Mycenae ( ; grc, Μυκῆναι or , ''Mykē̂nai'' or ''Mykḗnē'') is an archaeological site near Mykines in Argolis, north-eastern Peloponnese, Greece. It is located about south-west of Athens; north of Argos; and south of Corinth. T ...

joined after the battle of Sepeia in 494, when Argos was defeated by Sparta. However, c.460 Argos took advantage of the Helot Revolt in Sparta to reconquer and destroy Mycenae. * Tiryns probably joined after Sepeia in 494. It was recaptured some years after 468 and destroyed. * The Boeotian League was already an ally of Sparta at the end of the 6th century, but apparently not a member of the Peloponnesian League. It more probably joined the League in the years between the Thirty Years' Peace in 446 and the beginning of the Peloponnesian war in 431, "as a single unit". Thebes and other members of the Boeotian League left in 395 at the beginning of the

(398–387), of which Thebes was a key player against Sparta. Thebes likely returned to the League after the King's Peace of 387. Thebes left the Peloponnesian League for good in 378. * The Phocians probably joined the league as a single unit at the same time as the Boeotians, between 446 and 431.Ste. Croix, ''Origins of the Peloponnesian War'', pp. 124, 338. * The Eastern Locrians probably joined the league as a single unit at the same time as the Boeotians, between 446 and 431. * The

Acarnania Acarnania ( el, Ἀκαρνανία) is a region of west-central Greece that lies along the Ionian Sea, west of Aetolia, with the Achelous River for a boundary, and north of the gulf of Calydon, which is the entrance to the Gulf of Corinth. Today ...

n cities of Ambracia, Leucas, and Anactorium, possibly joined between 446 and 431.Ste. Croix, ''Origins of the Peloponnesian War'', p. 124. They certainly joined the League in 389/8, after their defeat against Sparta.Stylianou, ''Historical Commentary on Diodorus'', p. 285. They left in 375. * Pellene was the first Achaean city to join the League in 431 (it acted independently several times from its federal structure, the Achaean League). The city was conquered by Epaminondas in 367 and allied with Thebes. * The Achaean League apparently followed Pellene and joined as a single unit by 429. In 417 Sparta forced the Achaeans to adopt an oligarchic constitution. The Achaeans were conquered by Epaminondas in 366. By 389, the Achaeans controlled Pleuron, Kalydon and Naupaktos on the northern shore of the Corinthian Gulf, which they lost in 366. *

was forced to join the League in 404 following its defeat in the Peloponnesian War. Athens left the League in 395 with the Corinthian War. *

Eleusis Elefsina ( el, Ελευσίνα ''Elefsina''), or Eleusis (; Ancient Greek: ''Eleusis'') is a suburban city and municipality in the West Attica regional unit of Greece. It is situated about northwest from the centre of Athens and is part of ...

became independent from Athens in 403, as a refuge of the Thirty Tyrants, and joined the League until it was recovered by Athens in 401. * The Akrorians were freed from Elis c.400; they formed a federal state and joined the League, probably as a single unit.James Roy, "Elis (with Akroria)", in Beck & Funke (eds.), ''Federalism'', p. 282; "Elis", in Funke & Luraghi (eds.), ''Politics of Ethnicity'', section "Elis and the ''Perioikoi''". * The Triphylians were freed from Elis c.400; they formed a federal state and joined the League, probably as a single unit. *

Olynthus Olynthus ( grc, Ὄλυνθος ''Olynthos'', named for the ὄλυνθος ''olunthos'', "the fruit of the wild fig tree") was an ancient city of Chalcidice, built mostly on two flat-topped hills 30–40m in height, in a fertile plain at the he ...

and the Chalkidians joined the League after its defeat against Sparta in 378.

List of wars of the Peloponnesian League

* War against Polycrates: c.525, Corinth and exiled Samians encouraged Sparta to launch an attack against

Polycrates Polycrates (; grc-gre, Πολυκράτης), son of Aeaces, was the tyrant of Samos from the 540s BC to 522 BC. He had a reputation as both a fierce warrior and an enlightened tyrant. Sources The main source for Polycrates' life and activit ...

, tyrant of

Samos Samos (, also ; el, Σάμος ) is a Greek island in the eastern Aegean Sea, south of Chios, north of Patmos and the Dodecanese, and off the coast of western Turkey, from which it is separated by the -wide Mycale Strait. It is also a separate ...

. The expedition was a failure. * War against Hippias: c.511, Sparta sent a first naval army against Athens, at the time ruled by the tyrant Hippias, perhaps because of his pro-Persian policies, or a Delphic order. The marines disembarked by Anchimolus were defeated by Hippias'

Thessalian Thessaly ( el, Θεσσαλία, translit=Thessalía, ; ancient Thessalian: , ) is a traditional geographic and modern administrative region of Greece, comprising most of the ancient region of the same name. Before the Greek Dark Ages, Thes ...

allies. The following year, Cleomenes I came back with a larger force through land; he took the

Acropolis An acropolis was the settlement of an upper part of an ancient Greek city, especially a citadel, and frequently a hill with precipitous sides, mainly chosen for purposes of defense. The term is typically used to refer to the Acropolis of Athens, ...

and forced Hippias to go into exile in the

. *

* Second Peloponnesian War *

* First Olynthian War: In summer 382, the Peloponnesian League attacked the Chalkidian league, dominated by

. Officially, Sparta answered the call from the cities of Akanthos and Apollonia against Olynthus, but they actually helped the Macedonian king Amyntas who had been dethroned by Olynthus, which also threatened Spartan hegemony in northern Greece. The war was difficult, but in 379 Olynthus surrendered; the federation disbanded and its members were forced to join the Peloponnesian League.Michael Zahrnt, "The Chalkidike and the Chalkidians", in Beck & Funke (eds.), ''Federalism'', pp. 351, 352. * Boeotian War

References

Bibliography

* Hans Beck & Peter Funke (editors), ''Federalism in Greek antiquity'', Cambridge University Press, 2015. * John Boardman et al., '' The Cambridge Ancient History, volume IV, Persia Greece, and the Eastern Mediterranean, from c. 525 to 479 B.C.'', Cambridge University Press, 1988. * Jim Capreedy,
A League within a League: The Preservation of the Elean Symmachy
, ''The Classical World'', Vol. 101, No. 4 (Summer, 2008), pp. 485–503. *

Paul Cartledge Paul Anthony Cartledge (born 24 March 1947)"CARTLEDGE, Prof. Paul Anthony", ''Who's Who 2010'', A & C Black, 2010online edition/ref> is a British ancient historian and academic. From 2008 to 2014 he was the A. G. Leventis Professor of Greek ...

, ''Agesilaos and the Crisis of Sparta'', Baltimore, Johns Hopkins University Press, 1987. * ——, ''Sparta and Lakonia, A Regional History 1300–362 BC'', London, Routledge, 2002 (originally published in 1979). * W. G. Forrest, ''A History of Sparta'', New York, Norton, 1986. * Peter Funke, Nino Luraghi (editors), ''The Politics of Ethnicity and the Crisis of the Peloponnesian League'', Hellenic Studies Series 32, Washington DC, Center for Hellenic Studies, 2009. * Mogens Herman Hansen & Thomas Heine Nielsen (editors), ''An Inventory of Archaic and Classical Poleis'', Oxford University Press, 2004. * G. L. Huxley, ''Early Sparta'', London, Faber & Faber, 1962. * Jakob A. O. Larsen,
The Constitution of the Peloponnesian League
, ''Classical Philology'', Vol. 28, No. 4 (Oct., 1933), pp. 257–276. * Anton Powell (editor), ''A Companion to Sparta'', Hoboken, Wiley, 2018. * J. B. Salmon, ''Wealthy Corinth, A History of the City to 338 BC'', Oxford, Clarendon Press, 1984. * G. E. M. de Ste. Croix, ''The Origins of the Peloponnesian War'', London, Duckworth, 1972. * P. J. Stylianou, ''A Historical Commentary on Diodorus Siculus, Book 15'', Oxford, Clarendon Press, 1998. * Konrad Wickert, ''Der peloponnesische Bund von seiner Entstehung bis zum Ende des Archidamischen Krieges'', Erlangen, 1961. {{Ancient Greece topics 6th-century BC establishments in Greece Ancient Greece Sparta Peloponnesian War Ancient Greek hegemonic leagues Spartan hegemony 6th-century BC military alliances 5th-century BC military alliances 4th-century BC military alliances Greek city-state federations