The Greek Army takes control of Silivri after Greece is awarded the city by the Paris Peace Conference; by 1923 Greece effectively lost control to the Turks.

The Paris Peace Conference was the formal meeting in 1919 and 1920 of the victorious Allies after the end of World War I to set the peace terms for the defeated Central Powers. Dominated by the leaders of Britain, France, the United States and Italy, it resulted in five treaties that rearranged the maps of Europe and parts of Asia, Africa and the Pacific Islands, and also imposed financial penalties. Germany and the other losing nations had no voice in the Conference's deliberations; this gave rise to political resentments that lasted for decades.

The conference involved diplomats from 32 countries and nationalities. Its major decisions were the creation of the League of Nations and the five peace treaties with the defeated states; the awarding of German and Ottoman overseas possessions as "mandates", chiefly to Britain and France; the imposition of reparations upon Germany; and the drawing of new national boundaries, sometimes involving plebiscites, to reflect ethnic boundaries more closely.

Wilson's liberal internationalist foreign policy goals, stated in the Fourteen Points, became the basis for the terms of the German surrender during the conference, as it had earlier been the basis of the German governments negotiations in the Armistice of 11 November 1918.

The main result was the Treaty of Versailles with Germany; Article 231 of the treaty placed the whole guilt for the war on "the aggression of Germany and her allies". That provision proved very humiliating for Germany, and set the stage for the expensive reparations that Germany was intended to pay (it paid only a small portion before its last payment in 1931). The five great powers (France, Britain, Italy, Japan and the United States) controlled the Conference. The "Big Four" were French Prime Minister Georges Clemenceau, British Prime Minister David Lloyd George, US President Woodrow Wilson, and Italian Prime Minister Vittorio Emanuele Orlando. They met informally 145 times and made all major decisions before they were ratified.The conference began on 18 January 1919. With respect to its end, Professor Michael Neiberg noted, "Although the senior statesmen stopped working personally on the conference in June 1919, the formal peace process did not really end until July 1923, when the Treaty of Lausanne was signed."It is often referred to as the "Versailles Conference", but only the signing of the first treaty took place there, in the historic palace; the negotiations occurred at the Quai d'Orsay, in Paris.

Silivri (ancient Selymbria) is a city and a district in Istanbul Province along the Sea of Marmara in Turkey, outside the urban core of Istanbul, containing many holiday and weekend homes for residents of the city. The largest settlement in the district is also named Silivri.

Silivri is located bordering Büyükçekmece to the east, Çatalca to the north, Çorlu and Marmara Ereğli (both districts of Tekirdağ Province) to the west, Çerkezköy to the north-west (one of Tekirdağ Province) and with the Sea of Marmara to the south. It is, with an area of 760 km2 (290 sq mi), the second largest district of Istanbul Province after Çatalca. The seat of the district is the city of Silivri.

The district consists of 8 towns and 18 villages. It has a population of 155,923 (2013 census). with 75,702 in the city of Silivri and the remaining in the surrounding towns and villages – listed below.

Established in 2008, Turkey's most modern (and Europe's largest) prison complex is located 9 km (5.6 mi) west of Silivri.