Le Plessis-Feu-Aussoux

Touquin (French pronunciation: [tukɛ̃] ) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.

Voinsles (French pronunciation: [vwɛ̃l] ) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.

Pézarches (French pronunciation: [pezaʁʃ] ) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.

Beautheil-Saints (French pronunciation: [botɛj sɛ̃]) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France. It was established on 1 January 2019 by merger of the former communes of Saints (the seat) and Beautheil.

Saints (French pronunciation: [sɛ̃] ) is a former commune in the Seine-et-Marne department in the Île-de-France region in north-central France. On 1 January 2019, it was merged into the new commune Beautheil-Saints.

Touquin Aerodrome was a temporary World War I airfield in France. It was located 1 mile (1.6 km) west of Touquin in the Île-de-France region in northern France.

Mauperthuis is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France. The village is famous for having produced five Musketeers including d'Artagnan, who was made famous in Alexandre Dumas, père's books. The ruined Château d'Artagnan still exists. Much of the land once belonged to the Montesquieu Family. This one tiny village billeted some of the US Air Service (precursor to the US Air Force) while the men flew out of the adjacent village of Saints. They were in Mauperthuis probably for just short of two months – from 8 July to 1 September 1918 out of the seven months it saw combat. Two adjacent villages – Saints and Touquin – also play a role in the lives of these men and the US Air Service. The men were based in Touquin from the end of June until 8 July, when they moved to Saints. The men were lodged in Mauperthuis, half a mile from Saints, while they were flying out of Saints. Quentin Roosevelt was billeted here when he was shot down and killed on 14 July 1918. Mauperthuis was occupied by the Prussians during the Franco-Prussian War of 1870–1871. It was also overrun by the Germans for one or two days in September, 1914 before being liberated by the British under General French. It was once again in German hands from 1940 to 1944. American tanks of the US 3rd Armored Division under General Maurice Rose liberated Mauperthuis on 27 August 1944.

Vaudoy-en-Brie (French: [vodwa ɑ̃ bʁi] ) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.

Saints Aerodrome, was a temporary World War I airfield in France. It was located 0.7 miles (1.1 km) North of Saints, in the Île-de-France region in north-central France.

Saint-Augustin (French pronunciation: [sɛ̃.t‿oɡystɛ̃] (listen)) is a commune in the Seine-et-Marne department in the Île-de-France region in north-central France.

Beautheil (French pronunciation: [botɛj] (listen)) is a former commune in the Seine-et-Marne department in the Île-de-France region in north-central France. On 1 January 2019, it was merged into the new commune Beautheil-Saints.

The Communauté de communes Les Sources de l'Yerres is a former federation of municipalities (communauté de communes) in the Seine-et-Marne département and in the Île-de-France région of France. It was created in December 2003. It was merged into the new Communauté de communes du Val Briard in January 2017.