Alternate History: The Treaty of Sèvres is Ratified (1920–1923 and Beyond)

Point of Divergence

In our timeline, Mustafa Kemal Atatürk organized the Turkish National Movement, convened the Grand National Assembly in Ankara, and launched the Turkish War of Independence. This defeated Greek forces in the west, Armenian forces in the east, and French incursions in the south, forcing the Allies to abandon Sèvres and negotiate the more lenient Treaty of Lausanne in 1923.
In this alternate timeline, Kemal is either assassinated in early 1920 (perhaps by a pro-Sultan loyalist or an Allied-backed agent), suffers a decisive health issue, or fails to rally sufficient support. The nationalist movement fragments without his unifying leadership. The Sultan’s government in Istanbul, backed by Allied occupation forces (British, French, Italian), suppresses remaining resistance. Pro-Sultan forces, the "Army of the Caliphate," with Allied air and naval support, crush scattered uprisings in Anatolia by mid-1921. The Treaty of Sèvres is ratified by the Ottoman government on August 10, 1920, and enforced.Key Provisions of the Enforced Treaty of SèvresThe treaty fundamentally dismantles the Ottoman Empire:

• Territorial Losses:
  • Greece: Eastern Thrace (up to the Chatalja line), the region of Smyrna (Izmir) and its hinterland (with a plebiscite after five years that Greece would likely win), and control over the Aegean islands dominating the Dardanelles.
  • Armenia: An independent Armenian state in eastern Anatolia, incorporating Erzurum, Van, Bitlis, and parts of Trabzon, with a Black Sea outlet. Boundaries drawn with input from U.S. President Woodrow Wilson.
  • Kurdistan: An autonomous Kurdish region in the southeast, potentially leading to full independence via plebiscite.
  • French and Italian Zones: France gains influence in Cilicia (southern Anatolia) and a sphere in the southeast. Italy receives the Antalya region and southwestern Anatolia as a zone of influence.
  • Straits and Constantinople: The Bosphorus, Dardanelles, and Sea of Marmara are demilitarized and placed under international control (League of Nations commission). Constantinople (Istanbul) remains under nominal Ottoman sovereignty but is effectively an Allied-occupied city with international oversight.
  • Arab Lands: Full renunciation of Ottoman claims; formalizes British mandates in Palestine, Iraq, and Transjordan, and French mandates in Syria and Lebanon. Hejaz becomes independent.
• Military Restrictions: Ottoman army capped at 50,000 men, no air force, severely limited navy. Heavy demilitarization in key zones.
• Financial and Legal: Capitulations (extraterritorial rights for foreigners) restored and expanded. Heavy reparations, Allied financial oversight, and minority protections that favor Greeks, Armenians, and other Christians.

The Sultan (Mehmed VI, later succeeded by Abdülmecid II as Caliph in a ceremonial role) remains as a figurehead ruler of a rump "Turkish State" in central Anatolia, heavily dependent on Allied support.

The Good

• Greece realizes much of the Megali Idea: Smyrna (İzmir) and Eastern Thrace become Greek. A large Greek state emerges in the Eastern Mediterranean, controlling both sides of the Aegean. This creates a stronger, more confident Greece that becomes a regional power earlier.
• Armenian survival: An independent Armenia is born in eastern Anatolia with access to the Black Sea. It avoids the full horrors of Sovietization and becomes a viable (if fragile) Christian state in the region, protected initially by the Allies and the League of Nations.
• Kurdish autonomy: Kurds gain an autonomous zone that could evolve into independence. This prevents decades of suppression under a strong Turkish state.
• End of Ottoman imperialism: The Sultanate is reduced to a rump Turkish state in central Anatolia. The Arab world achieves cleaner independence from Turkish rule, potentially leading to different (and in some cases less turbulent) state formation in the Levant and Mesopotamia.
• International oversight of the Straits: The Bosphorus and Dardanelles are demilitarized and internationally controlled, reducing the risk of a single power dominating this critical chokepoint.

The Bad

• Massive population tragedies: Forced expulsions, ethnic cleansing, and revenge killings occur on all sides. Millions of Turks are driven from the coasts and east. Greeks, Armenians, and Kurds suffer retaliatory violence in the interior. Refugee crises dwarf those of our timeline.
• Economic ruin for Anatolia: The rump Turkish state is demilitarized, bankrupt, and under heavy Allied financial control. Capitulations return with a vengeance. Development stalls for decades. Central Anatolia becomes a poor, backward backwater.
• Humiliated Turkish identity: The Sultan is widely viewed as a traitor and puppet. Turkish national pride is shattered. This breeds deep, lasting resentment and a far more toxic form of revanchism than anything seen in real history.
• Weak and unstable states: Independent Armenia and Kurdistan are internally fragile, tribal, and prone to civil conflict. Greece becomes overextended and bogged down managing a hostile Turkish minority in Anatolia.
• Sultanate survives as a relic: The Ottoman dynasty limps on as a powerless, corrupt, British-backed monarchy — a constant symbol of national humiliation rather than a unifying force.

The Ugly

• Endless low-level wars and insurgencies: The 1920s–1940s are filled with guerrilla warfare, massacres, and ethnic cleansing across Anatolia. Greek occupation of Smyrna and the Aegean coast faces constant Turkish revolts. Armenia fights Kurdish irregulars and Turkish bands. The region becomes a powder keg.
• Worse path into World War II: The bitter, revanchist rump Turkey almost certainly joins the Axis (or tilts extremely pro-German) to reclaim lost lands. This opens a dangerous new front in the Eastern Mediterranean and Caucasus. Greece pays a much heavier price.
• No Atatürk reforms: Without Kemal, there is no rapid secular modernization. The rump Turkish state remains socially conservative, religiously dominated, and technologically backward. Women’s rights, education, and industrialization lag badly.
• Balkanized and unstable Middle East: An independent Kurdistan destabilizes Iraq, Syria, and Iran earlier and more violently. A larger Armenia creates new conflicts with whoever controls the Caucasus. The lack of a strong, unified Turkey leaves a power vacuum that invites Soviet, British, and later American meddling.
• Long-term poisoned legacy: “Sèvres” becomes an even deeper national trauma than Versailles was for Germany. Even today, the map of Anatolia remains a patchwork of bitter, ethnically divided states with disputed borders, refugee grievances, and recurring violence. Democracy and prosperity come much slower to the entire region.

Overall Verdict:

Enforcing Sèvres “succeeds” on paper for the Allies and creates winners (Greece, Armenia, Kurds), but the human and long-term geopolitical cost is enormous. The Middle East and Anatolia become more fragmented, poorer, and bloodier than in our timeline — a classic case of a harsh peace that plants the seeds for the next round of wars.