The Greco-Turkish War of 1919–1922 was fought between Greece and the Turkish National Movement during the partitioning of the Ottoman Empire in the aftermath of World War I, between 15 May 1919 and 14 October 1922. This conflict was a part of the Turkish War of Independence.
The causes and aims of the war have been debated and interpreted differently in the historiography. One major stated justification for the Greek military campaign was the protection of Greek populations amid continuing violence against Ottoman Greeks. By contrast, the Turkish National Movement presented the conflict as a defensive struggle to preserve Turkish homelands against foreign occupation.
The armed conflict started when the Greek forces landed in Smyrna (now İzmir), on 15 May 1919. In the Greek Summer Offensive of 1920, they advanced inland and took control of the western and northwestern part of Anatolia, including the cities of Manisa, Balıkesir, Aydın, Bursa and Uşak, among others. In 1921, after another Greek victory in the Battle of Kütahya–Eskişehir, the Greek forces almost reached Ankara, but their advance was finally checked by Turkish forces at the Battle of the Sakarya. The Greek front eventually collapsed with the Turkish counter-attack in August 1922, and the war effectively ended with the recapture of Smyrna by Turkish forces and the great fire of Smyrna.
As a result, the Greek government accepted the demands of the Turkish National Movement and returned to its pre-war borders, thus leaving Eastern Thrace and Western Anatolia to Turkey. The Allies abandoned the Treaty of Sèvres to negotiate a new treaty at Lausanne with the Turkish National Movement. The Treaty of Lausanne recognized the independence of the Republic of Turkey and its sovereignty over Anatolia, Istanbul, and Eastern Thrace. The Greek and Turkish governments agreed to engage in a population exchange.
Background
Geopolitical context
The geopolitical context of this conflict is linked to the partitioning of the Ottoman Empire which was a direct consequence of World War I and the involvement of the Ottomans in the Middle Eastern theatre. The Greeks received an order to land in Smyrna by the Triple Entente as part of the partition. During this war, the Ottoman government collapsed completely, and the Ottoman Empire was divided amongst the victorious Entente powers with the signing of the Treaty of Sèvres on 10 August 1920.
There were a number of secret agreements regarding the partitioning of the Ottoman Empire at the end of World War I. The Triple Entente had made contradictory promises about post-war arrangements concerning Greek hopes in Asia Minor.
The western Allies, particularly British Prime Minister David Lloyd George, had promised Greece territorial gains at the expense of the Ottoman Empire if Greece entered the war on the Allied side. These included Eastern Thrace, the islands of Imbros (İmroz, since 29 July 1979 Gökçeada) and Tenedos (Bozcaada), and parts of western Anatolia around the city of Smyrna, which contained sizable ethnic Greek populations.
The Italian and Anglo-French repudiation of the Agreement of St.-Jean-de-Maurienne signed on 26 April 1917, which settled the "Middle Eastern interest" of Italy, was overridden with the Greek occupation, as Smyrna (İzmir) was part of the territory promised to Italy. Before the occupation the Italian delegation to the Paris Peace Conference, 1919, angry about the possibility of the Greek occupation of Western Anatolia, left the conference and did not return to Paris until 5 May. The absence of the Italian delegation from the Conference ended up facilitating Lloyd George's efforts to persuade France and the United States to support Greece and prevent Italian operations in Western Anatolia.
According to some historians, it was the Greek occupation of Smyrna that created the Turkish National movement. Arnold J. Toynbee argues: "The war between Turkey and Greece which burst out at this time was a defensive war for safeguarding of the Turkish homelands in Anatolia. It was a result of the Allied policy of imperialism operating in a foreign state, the military resources and powers of which were seriously under-estimated; it was provoked by the unwarranted invasion of a Greek army of occupation." According to others, the landing of the Greek troops in Smyrna was part of Eleftherios Venizelos's plan, inspired by the Megali Idea, to liberate the large Greek populations in the Asia Minor. Prior to the Great Fire of Smyrna, Smyrna had a greater Greek population than the Greek capital, Athens. Athens, before the population exchange between Greece and Turkey, had a population of 473,000, while the central kaza of Smyrna, according to Ottoman Census, in 1914, had a Greek population of 73,676. The entire Aydın Vilayet including modern İzmir, Manisa, Aydın, and Denizli provinces had a Greek population of 299,096, while the sanjak of Muğla had a Greek population of 19,923.
One of the reasons proposed by the Greek government for launching the Asia Minor expedition was that there was a sizeable Greek-speaking Orthodox Christian population inhabiting Anatolia that needed protection. Greeks had lived in Asia Minor since antiquity, and in 1912, there were 2.5 million Greeks in the Ottoman Empire. The Ottoman Census of 1906–1907 gives a higher figure for the entire Greek Orthodox population including Orthodox Albanians, Slavic-speakers, Vlachs, Arab Orthodox Christians, of the empire amounted to 2,823,063. According to the Ottoman Census of 1914, the Greek Orthodox population of the Ottoman Empire after losing its Balkan and Aegean Island provinces, including 188,047 Arab Orthodox Christians from modern-day Syria, Lebanon and Israel, was 1,729,738. The suggestion that the Greeks constituted the majority of the population in the lands claimed by Greece has been contested by a number of historians. Cedric James Lowe and Michael L. Dockrill also argued that Greek claims about Smyrna were at best debatable, since Greeks constituted perhaps a bare majority, more likely a large minority in the Smyrna Vilayet, "which lay in an overwhelmingly Turkish Anatolia." Precise demographics are further obscured by the Ottoman policy of dividing the population according to religion rather than descent, language, or self-identification. On the other hand, contemporaneous British and American statistics (1919) support the point that the Greek element was the most numerous in the region of Smyrna, counting 375,000, while Muslims were 325,000.
Greek Prime Minister Venizelos stated to a British newspaper that "Greece is not making war against Islam, but against the anachronistic Ottoman Government, and its corrupt, ignominious, and bloody administration, with a view to expelling it from those territories where the majority of the population consists of Greeks."
To an extent, the above danger may have been overstated by Venizelos as a negotiating card on the table of Sèvres, in order to gain the support of the Allied governments. For example, the Young Turks were not in power at the time of the war, which makes such a justification less straightforward. Most of the leaders of that regime had fled the country at the end of World War I and the Ottoman government in Constantinople was already under British control. Furthermore, Venizelos had already revealed his desires for annexation of territories from the Ottoman Empire in the early stages of World War I, before these massacres had taken place. In a letter sent to Greek King Constantine in January 1915, he wrote that: "I have the impression that the concessions to Greece in Asia Minor ... would be so extensive that another equally large and not less rich Greece will be added to the doubled Greece which emerged from the victorious Balkan wars."
Through its failure, the Greek invasion may have instead exacerbated the atrocities that it was supposed to prevent. Arnold J. Toynbee blamed the policies pursued by Great Britain and Greece, and the decisions of the Paris Peace conference as factors leading to the atrocities committed by both sides during and after the war: "The Greeks of 'Pontus' and the Turks of the Greek occupied territories, were in some degree victims of Mr. Venizelos's and Mr. Lloyd George's original miscalculations at Paris."
Greek irredentism
One of the main motivations for initiating the war was to realize the Megali (Great) Idea, a core concept of Greek nationalism. The Megali Idea was an irredentist vision of a restoration of a Greater Greece on both sides of the Aegean that would incorporate territories with Greek populations outside the borders of the Kingdom of Greece, which was initially very small – roughly half the size of the present-day Greek Republic. From the time of Greek independence from the Ottoman Empire in 1830, the Megali Idea had played a major role in Greek politics. Greek politicians, since the independence of the Greek state, had made several speeches on the issue of the "historic inevitability of the expansion of the Greek Kingdom." For instance, Greek politician Ioannis Kolettis voiced this conviction in the assembly in 1844: "There are two great centres of Hellenism. Athens is the capital of the Kingdom. Constantinople is the great capital, the City, the dream and hope of all Greeks."
The Great Idea was not merely the product of 19th century nationalism. It was, in one of its aspects, deeply rooted in many Greeks' religious consciousness. This aspect was the recovery of Constantinople for Christendom and the reestablishment of the Christian Byzantine Empire which had fallen in 1453. "Ever since this time the recovery of St. Sophia and the City had been handed down from generation to generation as the destiny and aspiration of the Greek Orthodox." The Megali Idea, besides Constantinople, included most traditional lands of the Greeks including Crete, Thessaly, Epirus, Macedonia, Thrace, the Aegean Islands, Cyprus, the coastlands of Asia Minor and Pontus on the Black Sea. Asia Minor was an essential part of the Greek world and an area of enduring Greek cultural dominance. In antiquity, from late Bronze Age up to the Roman conquest, Greek city-states had even exercised political control of most of the region, except the period ca. 550–470 BC when it was part of the Achaimenid Persian Empire. Later, during Middle Ages, the region had belonged to the Byzantine Empire until the 12th century, when the first Seljuk Turk raids reached it.
The National Schism in Greece
The National Schism in Greece was the deep split of Greek politics and society between two factions, the one led by Eleftherios Venizelos and the other by King Constantine, that predated World War I but escalated significantly over the decision on which side Greece should support during the war.
The United Kingdom had hoped that strategic considerations might persuade Constantine to join the cause of the Allies, but the King and his supporters insisted on strict neutrality, especially whilst the outcome of the conflict was hard to predict. In addition, family ties and emotional attachments made it difficult for Constantine to decide which side to support during World War I. The King's dilemma was further increased when the Ottomans and the Bulgarians, both having grievances and aspirations against the Greek Kingdom, joined the Central Powers.
Though Constantine did remain decidedly neutral, Prime Minister of Greece Eleftherios Venizelos had from an early point decided that Greece's interests would be best served by joining the Entente and started diplomatic efforts with the Allies to prepare the ground for concessions following an eventual victory. The disagreement and the subsequent dismissal of Venizelos by the King resulted in a deep personal rift between the two, which spilled over into their followers and the wider Greek society. Greece became divided into two radically opposed political camps, as Venizelos set up a separate state in Northern Greece, and eventually, with Allied support, forced the King to abdicate. In May 1917, after the exile of Constantine, Venizélos returned to Athens and allied with the Entente. Greek military forces (though divided between supporters of the monarchy and supporters of "Venizelism") began to take part in military operations against the Bulgarian Army on the border.
The act of entering the war and the preceding events resulted in a deep political and social division in post–World War I Greece. The country's foremost political formations, the Venizelist Liberals and the Royalists, already involved in a long and bitter rivalry over pre-war politics, reached a state of outright hatred towards each other. Both parties viewed the other's actions during the First World War as politically illegitimate and treasonous. This enmity inevitably spread throughout Greek society, creating a deep rift that contributed decisively to the failed Asia Minor campaign and resulted in much social unrest in the inter-war years.
History
Greek expansion
The military aspect of the war began with the Armistice of Mudros. The military operations of the Greco-Turkish war can be roughly divided into three main phases: the first phase, spanning the period from May 1919 to October 1920, encompassed the Greek Landings in Asia Minor and their consolidation along the Aegean Coast. The second phase lasted from October 1920 to August 1921, and was characterised by Greek offensive operations. The third and final phase lasted until August 1922, when the strategic initiative was held by the Turkish Army.